You may have diverse opportunities to develop math skills and problem-solving skills but practicing with Go Math 1st Grade Book Solutions will be the best of all. So, Utilize the given Go Math Textbook 1st Grade Answer Key for better and efficient learning. Grade 1 is designed by subject experts in a fun-learning way to encourage elementary school kids. These Go Math 1st Grade Solutions Ch 1 Addition Concepts are very easy to understand and educates the kids with all basic concepts.

Lesson: 1 Algebra • Use Pictures to Add To

Lesson: 3 Model Putting Together

Lesson: 4 Problem Solving • Model Addition

Mid-Chapter Checkpoint

Lesson: 5 Algebra • Add Zero

Lesson: 6 Algebra • Add in Any Order

Lesson: 7 Algebra • Put Together Numbers to 10

Curious George

How many kittens can you add to the group to have 10 kittens? Explain.

The kittens we can add to the group to have 10 kittens = 8.

Explanation:
In the above-given question,
given that,
there are 2 kittens in the picture,
we can add 8 kittens to make 10 kittens.
2 + 8 = 10.
The kittens we can add to the group to have 10 kittens = 8.

### Addition Concepts Show What You Know

Explore Numbers 1 to 4

Use to show the number. Draw the

Question 1.

The number is 4.

Explanation:
In the above-given question,
given that,
the number is 4.
so we have to draw the 4 buttons.

Question 2.

The number is 3.

Explanation:
In the above-given question,
given that,
the number is 3.
so we have to draw the 3 buttons.

Numbers 1 to 10
How many objects are in each group?

Question 3.

The number of chicks = 7.

Explanation:
In the above-given question,
given that,
there are 7 chicks,
so the number of chicks = 7.

Question 4.

The number of eggs= 5.

Explanation:
In the above-given question,
given that,
there are 5 eggs,
so the number of eggs = 5.

Question 5.

The number of flowers = 4.

Explanation:
In the above-given question,
given that,
there are 4 flowers,
so the number of flowers = 4.

Numbers 0 to 10
How many spots are on the ladybug?

Question 6.

The number of spots on the ladybug = 0.

Explanation:
In the above-given question,
given that,
there are no spots on the bug.
so the number of spots on the ladybug = 0.

Question 7.

The number of spots on the ladybug = 6.

Explanation:
In the above-given question,
given that,
there are 6 spots on the bug.
so the number of spots on the ladybug = 6.

Question 8.

The number of spots on the ladybug = 10.

Explanation:
In the above-given question,
given that,
there are ten spots on the bug.
so the number of spots on the ladybug = 10.

Question 9.

The number of spots on the ladybug = 2.

Explanation:
In the above-given question,
given that,
there are 2 spots on the bug.
so the number of spots on the ladybug = 2.

Visualize It

Draw to show 1 more. Draw to show adding to.

The number of love shapes = 4.

Explanation:
In the above-given question,
given that,
there are 3 love shapes and also given that 1 more.
3 + 1 = 4.
so the number of love shapes = 4.

The number of boxes = 4.

Explanation:
In the above-given question,
given that,
there are 3 boxes and also given that 1 more.
3 + 1 = 4.
so the number of love shapes = 4.

Understand Vocabulary

Complete the sentences with review words.

Question 1.
Sue wants to know how many counters are in two groups. She can _use__ Addition__to find out.

She can use addition to find out.

Explanation:
In the above-given question,
given that,
Sue wants to know how many counters are in two groups.
She can use addition to find out.

Question 2.
Pete has 2 apples. May has 3 apples. May has _1 _ apple than Pete.

May has 1 more apple than Pete.

Explanation:
In the above-given question,
given that,
Peter has 2 apples.
May has 3 apples.
2 + 1 = 3.
May has 1 more apple than Pete.

Materials
• 2 sets of Numeral Cards 0–4

Play with a partner.
1. Mix the cards in each set. Put both sets facedown.
2. Take a card from each set. Join and to add.
4. If you are correct, cover the answer with a
5. The other player takes a turn.
6. The first player to cover 3 spaces in a row wins.

The number is = 5.

Explanation:
In the above-given question,
given that,
player 1 red and player 2 blue.
player 1 = 2 and player 2 = 3
we have to add 2 + 3 = 5.
The number is 5.

Going Places with GOMATH! words

Going to the Zoo

Materials

How to Play
1. Each player puts a on START.
2. Toss the to take a turn. Move your that many spaces.
3. If you land on these spaces:
White Space Read the math word or symbol. Tell its meaning. If you are correct, jump ahead to the next space with the same word. If not, stay where you are.
Green Space Follow the directions. If there are no directions, stay where you are.
4. The first player to reach FINISH wins.

Game
HOW TO PLAY
Materials

2. Toss the and move your that many spaces.
3. If you land on one of these spaces:
Blue Space Explain the math word or use it in a sentence. If your answer is correct, jump ahead to the next space with that word.
Green Space Follow the directions in the space. If there are no directions,
don’t move.
4. The first player to reach FINISH wins.

The symbol is equal to.

Explanation:
In the above-given question,
given that,
Read the math word or symbol.
the symbol is equal to.
for example, if we take 2 and 2.
2 is equal to 2.

The word is a sum.

Explanation:
In the above-given question,
given that,
Read the math word or symbol.
the word is sum.
for example, if we take 2 and 2.
2 plus 2 = 4.

The Write Way

Reflect
Choose one idea. Draw and write about it.
• Tell what happens when you add a zero to another number.
• Make up an addition story problem. Use 3 and 4. Then ask a partner to solve it.

If we add a zero to another number the number is the same.
3 + 4 = 7.

Explanation:
In the above-given question,
given that,
Tell me what happens when you add a zero to another number.
if we add a zero to another number the number is the same.
for example, 2 + 0 = 2.
3 + 4 = 7.

### Lesson 1.1 Algebra • Use Pictures to Add To

Essential Question
How do pictures show adding to?

Listen and Draw

Draw to show adding to. Write how many there are.

The number of ladybugs = 5.

Explanation:
In the above-given question,
given that,
so the number of ladybugs = 5.

Math Talk
MATHEMATICAL PRACTICES

Model Explain how your drawing shows the problem.

Share and Show MATH BOARD

Write how many.

Question 1.

3 fish and 1 more fish _4_ fish

The number of fish = 4.

Explanation:
In the above-given question,
given that,
there are 3 fish,
1 more fish
3 + 1 = 4.
so the number of fish = 4.

Question 2.

4 bees and 4 more bees __8_ bees

The number of bees =  8.

Explanation:
In the above-given question,
given that,
there are 4 bees,
4 more bees.
4 + 4 = 8
so the number of bees = 8.

MATHEMATICAL PRACTICE
Model Mathematics Write how many.

Question 3.

2 butterflies and 4 more butterflies _6_ butterflies

The number of butterflies = 6.

Explanation:
In the above-given question,
given that,
there are 2 butterflies.
4 more butterflies.
2 + 4 = 6.
so the number of butterflies = 6.

Question 4.

The number of ladybugs = 7.

Explanation:
In the above-given question,
given that,
3 + 4 = 7.
so the number of ladybugs = 7.

Question 5.
THINK SMARTER
Evan and Luke see 8 worms on the path. Luke sees 2 more worms than Evan. Evan sees 3 worms. How many worms does Luke see?

_5_ worms

Luke sees 5 warms.

Explanation:
In the above-given question,
given that,
Evan and luke see 8 worms on the path.
Luke sees 2 more worms than Evan.
Evan sees 3 worms.
3 + 2 = 5.
Luke sees 5 warms.

Problem Solving • Applications

Question 6.
THINK SMARTER
Color the birds to show how to solve.

There are 3 red birds. Some blue birds join them. How many blue birds are there?
There are _2_ blue birds.

The number of bluebirds = 2.

Explanation:
In the above-given question,
given that,
There are 3 red birds.
Some bluebirds join them.
3 + 2 = 5.
The number of bluebirds = 2.

Question 7.
THINK SMARTER
Circle how many ants in all.

The number of ants = 5.

Explanation:
In the above-given question,
given that,
There are 3 ants and 2 more ants.
3 + 2 = 5 ants.
The number of ants = 5.

TAKE HOME ACTIVITY
• Have your child use stuffed animals or other toys to show 3 animals. Then add to the group showing 2 more animals. Ask how many animals there are. Repeat for other combinations of animals with totals up to 10.

The number of animals = 5.

Explanation:
In the above-given question,
given that,
Your child use stuffed animals or other toys to show 3 animals.
Then add to the group showing 2 more animals.
3 + 2 = 5.
The number of animals = 5.

### Algebra • Use Pictures to Add To Homework & Practice 1.1

Write how many.

Question 1.

5 horses and 3 more horses _8_ horses

The number of horses = 8.

Explanation:
In the above-given question,
given that,
there are 5 horses and 3 more horses.
5 + 3 = 8.
so the number of horses = 8.

Question 2.

3 dogs and 2 more dogs _5_ dogs

The number of dogs = 5.

Explanation:
In the above-given question,
given that,
there are 3 dogs and 2 more dogs.
3 + 2 = 5.
so the number of dogs = 5.

Problem Solving

Question 3.
There are 2 rabbits. 5 rabbits join them. How many rabbits are there now?
There are _7_ rabbits.

The number of rabbits = 7.

Explanation:
In the above-given question,
given that,
there are 2 rabbits and 5 more rabbits.
2 + 5 = 7.
so the number of rabbits = 7.

Question 4.
WRITE Math
Use pictures and numbers to show 4 dogs and 1 more dog. Then write how many dogs there are.

The number of dogs = 5.

Explanation:
In the above-given question,
given that,
there are 4 dogs and 1 more dog.
4 + 1 = 5.
so the number of dogs = 5.

Lesson Check

Question 1.
How many birds are there? Write the number.

The number of birds = 8.

Explanation:
In the above-given question,
given that,
there are 2 birds and 6 more birds.
2 + 6 = 8.
so the number of birds = 8.

Spiral Review

Question 2.
How many goats are there? Write the number.
2 goats and 4 more goats _6_ goats

The number of goats = 6.

Explanation:
In the above-given question,
given that,
there are 2 goats and 4 more goats.
2 + 4 = 6.
so the number of goats = 6.

Question 3.
How many rabbits are there? Write the number.
5 rabbits and 1 more rabbit _6_ rabbits

The number of rabbits = 6.

Explanation:
In the above-given question,
given that,
there are 5 rabbits and 1 more rabbit.
5 + 1 = 6.
so the number of rabbits = 6.

Question 4.
How many ducks are there? Write the number.
5 ducks and 4 more ducks _9_ ducks

The number of ducks = 9.

Explanation:
In the above-given question,
given that,
there are 5 ducks and 4 more ducks.
5 + 4 = 9.
so the number of ducks = 9.

### Lesson 4.2 Model Adding To

Essential Question
How do you model adding to a group?

Listen and Draw

Math Talk
MATHEMATICAL PRACTICES

Share and Show MATH BOARD

Use to show adding to. Draw the Write the sum.

Question 1.
3 cats and 1 more cat
3 + 1 = _4_

The number of cats = 4.

Explanation:
In the above-given question,
given that,
there are 3 cats and 1 more cat.
3 + 1 = 4.
so the number of cats = 4.

Question 2.
2 birds and 3 more birds
2 + 3 = _5_

The number of birds = 5.

Explanation:
In the above-given question,
given that,
there are 2 birds and 3 more birds.
2 + 3 = 5.
so the number of birds = 5.

Question 3.
4 bugs and 4 more bugs
4 + 4 = _8_

The number of bugs = 8.

Explanation:
In the above-given question,
given that,
there are 4 bugs and 4 more bugs.
4 + 4 = 8.
so the number of bugs = 8.

Question 4.
4 fish and 2 more fish
4 + 2 = _6_

The number of fish = 6.

Explanation:
In the above-given question,
given that,
there are 4 fish and 2 more fish.
4 + 2 = 6.
so the number of fish = 6.

The number of bees = 3.

Explanation:
In the above-given question,
given that,
there are 2 bees and 1 more bee.
2 + 1 = 3.
so the number of bees = 3.

MATHEMATICAL PRACTICE
Use Appropriate Tools Use to show adding to. Draw the . Write the sum.

Question 5.
5 dogs and 4 more dogs
5 + 4 = _9_

The number of dogs = 9.

Explanation:
In the above-given question,
given that,
there are 5 bees and 4 more bees.
5 + 4 = 9.
so the number of bees = 9.

Question 6.
4 bees and 3 more bees
4 + 3 = _7_

The number of bees = 7.

Explanation:
In the above-given question,
given that,
there are 4 bees and 3 more bees.
4 + 3 = 7.
so the number of bees = 7.

Question 7.
THINK DEEPER
Julia has
4 books on the table. She puts 1 more book on the table. Then she puts 2 more books on the table. How many books are on the table?

_7_ books

The number of books on the table = 7.

Explanation:
In the above-given question,
given that,
There are 4 books on the table.
she puts 1 more book on the table.
Then she puts 2 more books on the table.
The number of books on the table = 7.

Question 8.
GO DEEPER
Diego drew cubes to show adding to. Draw to show how Diego should fix his picture. Write the sum.
2 + 8 = _10_

2 + 8 = _10_

The number of cubes = 10.

Explanation:
In the above-given question,
given that,
there are 2 cubes and 8 more cubes.
2 + 8 = 10.
so the number of cubes = 10.

Problem Solving • Applications

THINK SMARTER

The number of triangles = 5.

Explanation:
In the above-given question,
given that,
there are 3 triangles and 2 more triangles.
3 + 2 = 5.
so the number of triangles = 5.

The number of rectangles = 6.

Explanation:
In the above-given question,
given that,
there are 3 rectangles and 3 more rectangles.
3 + 3 = 6.
so the number of rectangles = 6.

The number of circles = 4.

Explanation:
In the above-given question,
given that,
there are 3 circles and 1 more circle.
3 + 1 = 4.
so the number of circles = 4.

Question 12.
THINK SMARTER
Use to show adding to. Draw the Write the sum.
3 bunnies and 5 more bunnies
3 + 5 =

The number of bunnies = 8.

Explanation:
In the above-given question,
given that,
there are 3 bunnies and 5 more bunnies.
3 + 5 = 8.
so the number of bunnies = 8.

TAKE HOME ACTIVITY
• Put 3 small objects in one group and 2 small objects in another group. Have your child write an addition sentence to tell about the small objects. Repeat for other combinations of small objects with sums of up to 10.

The number of objects = 5.

Explanation:
In the above-given question,
given that,
there are 3 objects and 2 more objects.
3 + 2 = 5.
so the number of objects = 5.

### Model Adding To Homework & Practice 1.2

Use to show adding to. Draw the . Write the sum.

Question 1.
5 ants and 1 more ant
5 + 1 = _6_

The number of ants = 6.

Explanation:
In the above-given question,
given that,
there are 5 ants and 1 more ant.
5 + 1 = 6.
so the number of ants = 6.

Question 2.
3 cats and 4 more cats
3 + 4 = _7_

The number of cats = 7.

Explanation:
In the above-given question,
given that,
there are 3 cats and 4 more cats.
3 + 4 = 7.
so the number of cats = 7.

Problem Solving

Question 3.

The number of rectangles = 5.

Explanation:
In the above-given question,
given that,
there are 2 rectangles and 3 more rectangles.
2 + 3 = 5.
so the number of rectangles = 5.

Question 4.

The number of circles = 4.

Explanation:
In the above-given question,
given that,
there are 3 circles and 1 more circle.
3 + 1 = 4.
so the number of circles = 4.

Question 5.
WRITE Math
Use cubes to show how to add 1 turtle to 5 turtles. Draw the cubes.

The number of turtles = 6.

Explanation:
In the above-given question,
given that,
there are 5 turtles and 1 more turtle.
5 + 1 = 6.
so the number of turtles = 6.

Lesson Check

Question 1.
Draw the Write the sum. What is the sum of 4 and 2?
4 + 2 = _6_

The sum for 4 + 2 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 2.
4 + 2 = 6.
the sum for 4 + 2 = 6.

Spiral Review

Question 2.
How many butterflies are there? Write the number.
5 butterflies and 2 more butterflies _7__ butterflies

The number of butterflies = 7.

Explanation:
In the above-given question,
given that,
there are 5 butterflies and 2 more butterflies.
5 + 2 = 7.
so the number of butterflies = 7.

Question 3.
Draw the . Write the sum. What is the sum of 2 and 3?
2 + 3 = _5_

The sum for 2 + 3 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 3.
2 + 3 = 5.
the sum for 2 + 3 = 5.

Question 4.
How many birds are there? Write the number.
6 birds and 1 more bird _7_ birds

The number of birds = 7.

Explanation:
In the above-given question,
given that,
there are 6 birds and 1 more bird.
6 + 1 = 7.
so the number of birds = 7.

### Lesson 1.3 Model Putting Together

Essential Question
How do you model putting together?

Listen and Draw

Use or an i Tool to model the problem. Draw a picture of your model. Write the numbers and addition sentence.

The number of red crayons = 2.
The number of yellow crayons = 3.
The number of crayons = 5.

Explanation:
In the above-given question,
given that,
there are red crayons and yellow crayons.
2 + 3 = 5.
so the number of crayons = 5.

Math Talk
MATHEMATICAL PRACTICES
Describe how the drawing helps you write the addition sentence.

Model and Draw

Add to find how many books there are.
There are 2 small books and 1 big book. How many books are there?
_3_ books

The number of books = 3.

Explanation:
In the above-given question,
given that,
there are 2 small books and 1 big book.
2 + 1 = 3.
so the number of books = 3.

Share and Show MATH BOARD

Use to solve. Draw to show your work. Write the number sentence and how many

Question 1.
There are 4 red pencils and 2 green pencils. How many pencils are there?
_6_ pencils

The number of pencils = 6.

Explanation:
In the above-given question,
given that,
there are 4 red pencils and  2 green pencils.
4 + 2 = 6.
so the number of pencils = 6.

Question 2.
There are 5 blue cups and 3 yellow cups. How many cups are there?
_8_ cups.

The number of cups = 8.

Explanation:
In the above-given question,
given that,
there are 5 blue cups and  3 yellow cups.
5 + 3 = 8.
so the number of cups = 8.

MATHEMATICAL PRACTICE
Write an Equation Use to solve. Draw to show your work. Write the number sentence and how many.

Question 3.
There are 3 small cats and 4 big cats. How many cats are there?
_7_ cats

The number of cats = 7.

Explanation:
In the above-given question,
given that,
there are 3 small cats and  4 big cats.
3 + 4 = 7.
so the number of cats = 7.

Question 4.
There are 6 red cubes and 3 blue cubes. How many cubes are there?
_9_ cubes

The number of cubes = 9.

Explanation:
In the above-given question,
given that,
there are 6 red cubes and  3 blue cubes.
6 + 3 = 9.
so the number of cubes = 9.

Question 5.
There are 2 red flowers and 8 yellow flowers. How many flowers are there?
_10_ flowers

The number of flowers = 10.

Explanation:
In the above-given question,
given that,
there are 2 red flowers and  8 yellow flowers.
8 + 2 = 10.
so the number of flowers = 10.

Question 6.
THINK SMARTER
4 girls and 4 boys run. Then 2 more children run. The same number of girls and boys run. How many of each run?

_6_ girls _6_ boys

The number of boys = 5.
The number of girls = 5.

Explanation:
In the above-given question,
given that,
there are 4 girls and  4 boys run.
2 more children run.
5 + 5 = 10.
so the number of children = 10.

Problem Solving • Applications

Question 7.
THINK SMARTER

The number of boys = 5.
The number of girls = 5.

Explanation:
In the above-given question,
given that,
there are 4 girls and  4 boys run.
2 more children run.
5 + 5 = 10.
so the number of children = 10.

Question 8.
Use to solve your story problem. Draw to show your work. Write the number sentence.

The number of boys = 5.
The number of girls = 5.

Explanation:
In the above-given question,
given that,
there are 4 girls and  4 boys run.
2 more children run.
5 + 5 = 10.
so the number of children = 10.

Question 9.
THINK SMARTER
Draw to solve. Write the number sentence and how many.
There are 4 yellow apples and 4 red apples. How many apples are there?
_8_ apples

The number of apples = 8.

Explanation:
In the above-given question,
given that,
there are 4 red apples and  4 yellow apples.
4 + 4 = 8.
so the number of apples = 8.

TAKE HOME ACTIVITY
• Have your child collect a group of up to 10 small objects and use them to make up addition stories.

### Model Putting Together Homework & Practice 1.3

Question 1.
There are 2 big dogs and 4 small dogs. How many dogs are there?
_6_ dogs

The number of dogs = 6.

Explanation:
In the above-given question,
given that,
there are 4 small dogs and  2 big dogs.
4 + 2 = 6.
so the number of dogs = 6.

Question 2.
There are 3 red crayons and 2 green crayons. How many crayons are there?
_5_ crayons

The number of crayons = 5.

Explanation:
In the above-given question,
given that,
there are 3 red crayons and  2 green crayons.
3 + 2 = 5.
so the number of crayons = 5.

Problem Solving

Question 3.
WRITE Math
___________
___________

The number of boys = 5.
The number of girls = 5.

Explanation:
In the above-given question,
given that,
there are 4 girls and  4 boys run.
2 more children run.
5 + 5 = 10.
so the number of children = 10.

Question 4.
_________________
_________________

The number of crayons = 5.

Explanation:
In the above-given question,
given that,
there are 3 red crayons and  2 green crayons.
3 + 2 = 5.
so the number of crayons = 5.

Lesson Check

Question 1.
Write the number sentence and how many. There are 3 black cats and 2 brown cats. How many cats are there?
_5_ cats

The number of cats = 5.

Explanation:
In the above-given question,
given that,
there are 3 black cats and  2 brown cats.
3 + 2 = 5.
so the number of cats = 5.

Question 2.
There are 4 red flowers and 3 yellow flowers. How many flowers are there?
_7_ flowers

The number of flowers = 7.

Explanation:
In the above-given question,
given that,
there are 4 red flowers and  3 yellow flowers.
4 + 3 = 7.
so the number of flowers = 7.

Spiral Review

Question 3.
How many turtles are there? Write the number.
6 turtles and 3 more turtles _9__ turtles

The number of turtles = 9.

Explanation:
In the above-given question,
given that,
there are 6 turtles and 3 more turtle.
6 + 3 = 9.
so the number of turtles = 9.

Question 4.
Draw the . Write the sum. What is the sum of 2 and 1?
2 + 1 = _3_

The sum for 2 + 1 = 3.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 1.
2 + 1 = 3.
the sum for 2 + 1 = 3.

### Lesson 1.4 Problem Solving • Model Addition

Essential Question
How do you solve addition problems by making a model?

Hanna has 4 red flowers in a . She puts 2 more flowers in the . How many flowers are in the ? How can you use a model to find out?

The number of flowers = 6.

Explanation:
In the above-given question,
given that,
Hanna has 4 red flowers in a pot.
she puts 2 more flowers in the pot.
4 + 2 = 6.
so the number of flowers = 6.

Unlock the Problem

What do I need to find?

What information do I need to use?

The number of flowers = 6.

Explanation:
In the above-given question,
given that,
Hanna has 4 red flowers in a pot.
she puts 2 more flowers in the pot.
4 + 2 = 6.
so the number of flowers = 6.

Show how to solve the problem.

The number of flowers = 6.

Explanation:
In the above-given question,
given that,
Hanna has 4 red flowers in a pot.
she puts 2 more flowers in the pot.
4 + 2 = 6.
so the number of flowers = 6.

HOME CONNECTION
• Your child can model the concepts of adding to and putting together. He or she used a bar model to show the problems and solve.

Try Another Problem

Read the problem. Use the bar model to solve. Complete the model and the number sentence.

Question 1.
There are 7 dogs in the park. Then 1 more dog joins them. How many dogs are in the park now?

7 + 1 = _8__

The number of dogs = 8.

Explanation:
In the above-given question,
given that,
There are 7 dogs in the park.
Then 1 more dog joins them.
7 + 1 = 8.
so the number of dogs = 8.

Question 2.
Some birds are sitting in the tree. Four more birds sit in the tree. Then there are 9 birds. How many birds were in the tree before?

__5_ + 4 = 9

The number of birds = 5.

Explanation:
In the above-given question,
given that,
Some birds are sitting in the tree.
Four more birds sit in the tree.
5 + 4 = 9.
so the number of birds = 5.

Question 3.
There are 4 horses in the field. Some more horses run to the field. Then there were 10 horses in the field. How many horses run to the field?

4 + _6_ = 10

The number of horses run to the field = 6.

Explanation:
In the above-given question,
given that,
There are 4 horses in the field.
Then there were 10 horses.
4 + 6 = 10.
so the number of horses run to the field = 6.

Math Talk
MATHEMATICAL PRACTICES

Analyze In Exercise 1, how will the model change if there are 5 dogs and 3 dogs join them?

Share and Show MATH BOARD
MATHEMATICAL PRACTICE
Use Diagrams Read the problem. Use the bar model to solve. Complete the model and the number sentence.

Question 4.
THINK SMARTER
Luis has 12 crayons. 5 of the crayons are red. The rest are blue. How many crayons are blue?

5 + _7_ = 12

The number of blue crayons = 7.

Explanation:
In the above-given question,
given that,
Luis has 12 crayons.
5 of the crayons are red.
rest are blue.
5 + 7 = 12.
so the number of crayons = 7.

Question 5.
8 bugs are flying. 2 more bugs fly with them. How many bugs are flying now?

8 + 2 = _10_

The number of bugs flying = 10.

Explanation:
In the above-given question,
given that,
8 bugs are flying.
2 more bugs fly with them.
8 + 2 = 10.
so the number of bugs flying = 10.

Question 6.
THINK SMARTER
Some ducks are swimming in a pond. 3 more ducks swim in the pond. Then there are 6 ducks in the pond. How many ducks were in the pond before?

_3_ + 3 = 6

The number of ducks in the pond before = 3.

Explanation:
In the above-given question,
given that,
Some ducks are swimming in a pond.
3 more ducks swim in the pond.
Then there are 6 ducks in the pond.
3 + 3 = 6.
so the number of ducks in the pond before = 3.

TAKE HOME ACTIVITY
• Have your child describe each of the parts of a bar model using the number sentence 7 + 3 = 10.

The number of dogs = 10.

Explanation:
In the above-given question,
given that,
There are 7 dogs in the park.
Then 3 more dog joins them.
7 + 3 = 10.
so the number of dogs = 10.

### Problem Solving • Model Addition Homework & Practice 1.4

Read the problem. Use the bar model to solve. Complete the model and the number sentence.

Question 1.
Dylan has 7 flowers. 4 of the flowers are red. The rest are yellow. How many flowers are yellow?

4 + _3_ = 7

The number of yellow flowers = 3.

Explanation:
In the above-given question,
given that,
Dylan has 7 flowers.
4 of the flowers are red.
4 + 3 = 7.
so the number of yellow flowers = 3.

Question 2.
Some birds are flying in a group. 4 more birds join the group. Then there are 9 birds in the group. How many birds were in the group before?

_5_ + 4 = 9

The number of birds were in the group before = 5.

Explanation:
In the above-given question,
given that,
Some birds are flying in a group.
4 more birds join the group.
Then there are 9 birds in the group.
5 + 4 = 9.
so the number of birds were in the group before = 5.

Question 3.
6 cats are walking. 1 more cat walks with them. How many cats are walking now?

6 + 1 = _7_

The number of cats walking now = 7.

Explanation:
In the above-given question,
given that,
6 cats are walking.
1 more catwalks with them.
6 + 1 = 7.
so the number of cats walking now = 7.

Question 4.
WRITE MATH
Write a problem that has two parts. Then solve it by finding the whole.
______________
______________
______________
______________

Lesson Check

Question 1.
Complete the model and the number sentence. 3 ducks are in the pond. 6 more ducks join them. How many ducks are in the pond now?

3 + 6 = _9_

The number of ducks in the pond = 9.

Explanation:
In the above-given question,
given that,
3 ducks are in the pond.
6 more ducks join them.
3 + 6 = 9.
so the number of ducks in the pond = 9.

Spiral Review

Question 2.
Write the number sentence and how many. There are 4 green grapes and 4 red grapes. How many grapes are there?
_8_ grapes

The number of grapes = 8.

Explanation:
In the above-given question,
given that,
there are 4 green grapes and 4 red grapes.
4 + 4 = 8.
so the number of grapes = 8.

Question 3.
Draw the Write the sum. What is the sum of 7 and 3?
7 + 3 = _10_

The sum for 7 + 3 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 7 and 3.
7 + 3 = 10.
the sum for 7 + 3 = 10.

Question 4.
Draw the Write the sum. What is the sum of 6 and 2?
6 + 2 = _8_

The sum for 6 + 2 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 2.
6 + 2 = 8.
the sum for 6 + 2 = 8.

Concepts and Skills

Use to show adding to. Draw the Write the sum.

Question 1.
3 bugs and 4 more bugs
3 + 4 = _7_

The number of bugs = 7.

Explanation:
In the above-given question,
given that,
3 bugs and 4 more bugs.
3 + 4 = 7.
so the number of bugs = 7.

Question 2.
4 seals and 2 more seals
4 + 2 = _6_

The number of seals = 6.

Explanation:
In the above-given question,
given that,
4 seals and 2 more seals.
4 + 2 = 6.
so the number of seals = 6.

Use to solve. Draw to show your work. Write the number sentence and how many.

Question 3.
There are 5 red marbles and 4 blue marbles. How many marbles are there?
_9_ marbles

The number of marbles = 9.

Explanation:
In the above-given question,
given that,
There are 5 red marbles and 4 blue marbles.
5 + 4 = 9.
so the number of marbles = 9.

Question 4.
THINK SMARTER
There are 6 bunnies in the garden. More bunnies join them. Then there are 8 bunnies in the garden. How many bunnies join them?

6 + _2_ = 8

The number of bunnies joins them = 2.

Explanation:
In the above-given question,
given that,
6 bunnies in the garden.
Then there are 8 bunnies in the garden.
6 + 2 = 8
so the number of bunnies join them = 2.

### Lesson 1.5 Algebra • Add Zero

Essential Question
What happens when you add 0 to a number?

Listen and Draw

Use to model the problem. Draw the you use.

Math Talk
MATHEMATICAL PRACTICES
Model the problem showing Jennifer with 4 marbles and Scott with no marbles. How does the drawing change?

The number of marbles = 4.

Explanation:
In the above-given question,
given that,
Jennifer with 4 marbles and scott with no marbles.
4 + 0 = 4.
so the number of marbles = 4.

Share and Show MATH BOARD

Use the picture to write each part. Write the sum.

Question 1.

_1_ + _0_ = _1_

The sum for 1 + 0 = 1.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 0.
1 + 0 = 1.
the sum for 1 + 0 = 1.

Question 2.

_0_ + _2_ = _2_

The sum for 0 + 2 = 2.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 2.
0 + 2 = 2.
the sum for 0 + 2 = 2.

Question 3.

_0_ + _4_ = _4_

The sum for 0 + 4 = 4.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 4.
0 + 4 = 4.
the sum for 0 + 4 = 4.

Question 4.

_6_ + _0_ = _6_

The sum for 6 + 0 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 0.
6 + 0 = 6.
the sum for 6 + 0 = 6.

Draw circles to show the number. Write the sum

Question 5.

The sum for 2 + 0 = 2.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 0.
2 + 0 = 2.
the sum for 2 + 0 = 2.

Question 6.

The sum for 0 + 1 = 1.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 1.
0 + 1 = 1.
the sum for 0 + 1 = 1.

Question 7.

The sum for 4 + 6 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 6.
4 + 6 = 10.
the sum for 4 + 6 = 10.

Question 8.

The sum for 0 + 5 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 5.
0 + 5 = 5.
the sum for 0 + 5 = 5.

Question 9.

The sum for 3 + 4 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 4.
3 + 4 = 7.
the sum for 3 + 4 = 7.

Question 10.

The sum for 0 + 6 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 6.
0 + 6 = 6.
the sum for 0 + 6 = 6.

Question 11.
THINK SMARTER
There are 5 red birds. There are 3 green birds. How many birds are blue?
__2_ bluebirds

The number of bluebirds = 2.

Explanation:
In the above-given question,
given that,
There are 5 red birds.
There are 3 green birds.
5 + 3 + 2 = 10.
so the number of bluebirds = 2.

Question 12.
THINK SMARTER
Maya has 7 books. Eli has no books. Then Maya gives 7 books to Eli. How many books does Maya have?
__0_ books

The number of Books Maya have = 0.

Explanation:
In the above-given question,
given that,
Maya has 7 books.
Eli has no books.
Then Maya gives 7 books to Eli.
7 + 7 = 0.
so the number of Books Maya have  = 0.

Question 13.
THINK SMARTER
_7_ + _7_ = 0

The number of Books Maya have = 0.

Explanation:
In the above-given question,
given that,
Maya has 7 books.
Eli has no books.
Then Maya gives 7 books to Eli.
7 + 7 = 0.
so the number of Books Maya have  = 0.

Problem Solving • Applications

MATHEMATICAL PRACTICE

Generalize Write the addition sentence to solve.

Question 14.
Mike has 7 books. Cheryl does not have any books. How many books do they both have?

_7_ + _0_ = _7_
_7_ books

The number of Books they have both = 7.

Explanation:
In the above-given question,
given that,
Mike has 7 books.
Cheryl does not have any books.
7 + 0 = 7.
so the number of Books they have both  = 7.

Question 15.
THINK SMARTER
There are 5 birds in all. How many birds are in the bird house?
_5_ birds

The number of birds in the birdhouse = 5.

Explanation:
In the above-given question,
given that,
There are 5 birds in all.
5 + 0 = 5.
so the number of birds in the birdhouse  = 5.

Question 16.
THINK SMARTER
There are no dogs in the park. Then 5 dogs come to the park. How many dogs are in the park now?

_5_ dogs

The number of dogs in the park now = 5.

Explanation:
In the above-given question,
given that,
There are no dogs in the park.
Then 5 dogs come to the park.
0 + 5 = 5.
so the number of dogs in the park now = 5.

TAKE HOME ACTIVITY
• Write the numbers 0 to 9 on small squares of paper. Shuffle and place the cards facedown. Have your child turn over the top card and add zero to that number. Say the sum. Repeat the activity for each card.

### Algebra • Add Zero Homework & Practice 1.5

Draw circles to show the number. Write the sum.

Question 1.

The sum for 0 + 5 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 5.
0 + 5 = 5.
the sum for 0 + 5 = 5.

Question 2.

The sum for 1 + 3 = 4.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 3.
1 + 3 = 4.
the sum for 1 + 3 = 4.

Problem Solving

Write the addition sentence to solve.

Question 3.
6 turtles swim. No turtles join them. How many turtles are there now?
_6_ + _0_ = _6_
_6_ turtles

The number of turtles = 6.

Explanation:
In the above-given question,
given that,
there are 6 turtles and 0 more turtle.
6 + 0 = 6.
so the number of turtles = 6.

Question 4.
WRITE MATH
Use pictures and numbers to show 8 + 0.

The sum for 8 + 0 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 8 and 0.
8 + 0 = 8.
the sum for 8 + 0 = 8.

Lesson Check

Question 1.
Draw to show each addend. Write the sum. What is the sum for 0 + 4?
0 + 4 = _4_

The sum for 0 + 4 = 4.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 4.
0 + 4 = 4.
the sum for 0 + 4 = 4.

Spiral Review

Question 2.
Complete the model and the number sentence. There are 4 goats in the barn. 3 more goats join them. How many goats are in the barn now?

4 + 3 = _7_

The number of goats in the barn = 7.

Explanation:
In the above-given question,
given that,
There are 4 goats in the barn.
3 more goats join them.
4 + 3 = 7.
so the number of goats in the barn = 7.

Question 3.
Write the number sentence and how many. There are 7 blue crayons and 1 yellow crayon. How many crayons are there?
_8_ crayons

The number of crayons = 8.

Explanation:
In the above-given question,
given that,
There are 7 blue crayons and 1 yellow crayon.
7 + 1 = 8.
so the number of crayons = 8.

Question 4.
Draw the Write the sum. What is the sum of 3 and 3?
3 + 3 = _6_

The sum for 3 + 3 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 3.
3 + 3 = 6.
the sum for 3 + 3 = 6.

### Lesson 1.6 Algebra • Add in Any Order

Essential Question

Listen and Draw

Math Talk
MATHEMATICAL PRACTICES

Look for Structure Explain how 2 + 3 = 5 is the same as 3 + 2 = 5. How is it different?

Share and Show MATH BOARD

Use to add. Color to match. Write the sum.

Question 1.

The sum for 2 + 3 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 3.
2 + 3 = 5.
the sum for 2 + 3 = 5.

The sum for 3 + 2 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 2.
3 + 2 = 5.
the sum for 3 + 2 = 5.

Question 2.

The sum for 2 + 4 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 4.
2 + 4 = 6.
the sum for 2 + 4 = 6.

The sum for 4 + 2 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 2.
4 + 2 = 6.
the sum for 4 + 2 = 6.

Question 3.

The sum for 4 + 1 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 1.
4 + 1 = 5.
the sum for 4 + 1 = 5.

The sum for 1 + 4 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 4.
1 + 4 = 5.
the sum for 1 + 4 = 5.

MATHEMATICAL PRACTICE
Look for Structure Use . Write the sum. Circle the addition sentences in each row that have the same addends in a different order.

Question 4.

The sum for 1 + 2 = 3.
The sum for 2 + 1 = 3.
The sum for 1 + 3 = 4.

Explanation:
In the above-given question,
given that,
The sum for 1 + 2 = 3.
The sum for 2 + 1 = 3.
The sum for 1 + 3 = 4.

Question 5.

The sum for 1 + 5 = 6.
The sum for 4 + 2 = 6.
The sum for 2 + 4 = 6.

Explanation:
In the above-given question,
given that,
The sum for 1 + 5 = 6.
The sum for 4 + 2 = 6.
The sum for 2 + 4 = 6.

Question 6.
THINK SMARTER
Choose addends to complete the addition sentence. Change the order. Write the numbers.

The sum for 5 + 5 = 10.
The sum for 6 + 4 = 10.

Explanation:
In the above-given question,
given that,
The sum for 5 + 5 = 10.
The sum for 6 + 4 = 10.

Question 7.
GO DEEPER

The sum for 5 + 1 = 6.
The sum for 1 + 5 = 6.

Explanation:
In the above-given question,
given that,
The sum for 5 + 1 = 6.
The sum for 1 + 5 = 6.

Problem Solving • Applications WRITE Math

Draw pictures to match the addition sentences. Write the sum.

Question 8.
2 + 6 = _8_
6 + 2 = _8_

The sum for 2 + 6 = 8.
The sum for 6 + 2 = 8.

Explanation:
In the above-given question,
given that,
The sum for 2 + 6 = 8.
The sum for 6 + 2 = 8.

Question 9.
1 + 5 = _6_
5 + 1 = _6_

The sum for 1 + 5 = 6.
The sum for 5 + 1 = 6.

Explanation:
In the above-given question,
given that,
The sum for 1 + 5 = 6.
The sum for 5 + 1 = 6.

Question 10.
THINK SMARTER
Draw lines to match the same addends in a different order.

The sum for 7 + 3 = 10.
The sum for 3 + 6 = 9.
The sum for 4 + 6 = 10.

Explanation:
In the above-given question,
given that,
The sum for 7 + 3 = 10.
The sum for 3 + 6 = 9.
The sum for 4 + 6 = 10.

TAKE HOME ACTIVITY
• Ask your child to use small objects of the same kind to show 2 + 4 and 4 + 2 and then explain to you why the sums are the same. Repeat with other addition sentences.

### Algebra • Add in Any Order Homework & Practice 1.6

Use Write the sum. Circle the addition sentences in each row that have the same addends in a different order.

Question 1.

The sum for 1 + 3 = 4.
The sum for 1 + 2 = 3.
The sum for 3 + 1 = 4.

Explanation:
In the above-given question,
given that,
The sum for 1 + 3 = 4.
The sum for 1 + 2 = 3.
The sum for 3 + 1 = 4.

Question 2.

The sum for 2 + 3 = 5.
The sum for 3 + 2 = 5.
The sum for 0 + 5 = 5.

Explanation:
In the above-given question,
given that,
The sum for 2 + 3 = 5.
The sum for 3 + 2 = 5.
The sum for 0 + 5 = 5.

Question 3

The sum for 2 + 4 = 6.
The sum for 3 + 3 = 6.
The sum for 4 + 2 = 6.

Explanation:
In the above-given question,
given that,
The sum for 2 + 4 = 6.
The sum for 3 + 3 = 6.
The sum for 4 + 2 = 6.

Problem Solving

Draw pictures to match the addition sentences. Write the sums.

Question 4.
5 + 2 = _7_
2 + 5 = _7_

The sum for 2 + 5 = 7.
The sum for 5 + 2 = 7.

Explanation:
In the above-given question,
given that,
The sum for 2 + 5 = 7.
The sum for 5 + 2 = 7.

Question 5.
WRITE Math
Use pictures and numbers to show how to add 3 + 1 in any order.

The sum for 1 + 3 = 4.
The sum for 3 + 1 = 4.

Explanation:
In the above-given question,
given that,
The sum for 1 + 3 = 4.
The sum for 3 + 1 = 4.

Lesson Check

Question 1.
Circle the addition sentences in the row that have the same addends in a different order.

The sum for 1 + 5 = 6.
The sum for 6 + 1 = 7.
The sum for 1 + 6 = 7.

Explanation:
In the above-given question,
given that,
The sum for 1 + 5 = 6.
The sum for 6 + 1 = 7.
The sum for 1 + 6 = 7.

Spiral Review

Question 2.
Draw to show the numbers. Write the sum. What is the sum?
0 + 2 = _2_

The sum for 0 + 2 = 2.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 2.
0 + 2 = 2.
the sum for 0 + 2 = 2.

Question 3.
Write the number sentence and how many. There are 5 long strings and 3 short strings. How many strings are there?

The number of strings = 8.

Explanation:
In the above-given question,
given that,
There are 5 long strings and 3 short strings.
5 + 3 = 8.
so the number of strings = 8.

Question 4.
Draw the . Write the sum. What is the sum of 6 and 2?
6 + 2 = _8_

The sum for 6 + 2 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 2.
6 + 2 = 8.
the sum for 6 + 2 = 8.

### Lesson 1.7 Algebra • Put Together Numbers to 10

Essential Question
How can you show all the ways to make a number?

Listen and Draw

Use to show all the ways to make 5. Color to show your work.

The sum for 1 + 4 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 4.
1 + 4 = 5.
the sum for 1 + 4 = 5.

The sum for 2 + 3 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 3.
2 + 3 = 5.
the sum for 2 + 3 = 5.

The sum for 3 + 2 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 2.
3 + 2 = 5.
the sum for 3 + 2 = 5.

The sum for 4 + 1 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 1.
4 + 1 = 5.
the sum for  4 + 1 = 5.

The sum for 0 + 5 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 5.
0 + 5 = 5.
the sum for 0 + 5 = 5.

The sum for 5 + 0 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 0.
5 + 0 = 5.
the sum for  5 + 0 = 5.

Math Talk
MATHEMATICAL PRACTICES

How do you know you showed all the ways? Explain.

Share and Show MATH BOARD

Use Color to show how to make 9. Complete the addition sentences.

Question 3.

The sum for 7 + 2 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 7 and 2.
7 + 2 = 9.
the sum for 7 + 2 = 9.

Question 4.

9 = _6_ + _3__

The sum for 6 + 3 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 3.
6 + 3 = 9.
the sum for 6 + 3 = 9.

Question 5.

9 = _5_ + _4__

The sum for 5 + 4 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 4.
5 + 4 = 9.
the sum for 5 + 4 = 9.

Question 6.

9 = _4_ + _5__

The sum for 4 + 5 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 5.
4 + 5 = 9.
the sum for 4 + 5 = 9.

Question 7.

9 = _3_ + _6__

The sum for 3 + 6 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 6.
3 + 6 = 9.
the sum for 3 + 6 = 9.

Question 8.

9 = __2 + __7_

The sum for 2 + 7 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 7.
2 + 7 = 9.
the sum for 2 + 7 = 9.

Question 9.

9 = _1_ + _8__

The sum for 1 + 8 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 8.
1 + 8 = 9.
the sum for 1 + 8 = 9.

Question 10.

9 = _9_ + __0_

The sum for 9 + 0 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 9 and 0.
9 + 0 = 9.
the sum for 9 + 0 = 9.

MATHEMATICAL PRACTICE
Generalize Use . Color to show ways to make 10. Complete the addition sentences.

Question 11.

Question 12.

10 = _1__ + _9__

The sum for 1 + 9 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 9.
1 + 9 = 10.
the sum for 1 + 9 = 10.

Question 13.

10 = _2__ + _8__

The sum for 2 + 8 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 8.
2 + 8 = 10.
the sum for 2 + 8 = 10.

Question 14.

10 = _3__ + __7_

The sum for 3 + 7 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 7.
3 + 7 = 10.
the sum for 3 + 7 = 10.

Question 15.

10 = __4_ + _6__

The sum for 4 + 6 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 10.
4 + 6 = 10.
the sum for 4 + 6 = 10.

Question 16.

10 = _5__ + _5__

The sum for 5 + 5 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 5.
5 + 5 = 10.
the sum for 5 + 5 = 10.

Question 17.
THINK SMARTER
Zach has 6 rocks. He places some in a box and some in a bag. Draw two ways he can place the rocks.

The sum for 2 + 4 = 6.
The sum for 4 + 2 = 6.

Explanation:
In the above-given question,
given that,
The sum for 2 + 4 = 6.
The sum for 4 + 2 = 6.

Problem Solving • Applications

Question 18.
THINK SMARTER
I have 8 marbles. Some are red. Some are blue. How many of each could I have? Find and write as many ways as you can.

The sum for 0 + 8 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 8.
0 + 8 = 8.
the sum for 0 + 8 = 8.

The sum for 1 + 7 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 7.
1 + 7 = 8.
the sum for 1 + 7 = 8.

The sum for 2 + 6 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 6.
2 + 6 = 8.
the sum for 2 + 6 = 8.

The sum for 1 + 7 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 7.
1 + 7 = 8.
the sum for 1 + 7 = 8.

The sum for 6 + 2 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 2.
6 + 2 = 8.
the sum for 6 + 2 = 8.

The sum for 3 + 5 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 5.
3 + 5 = 8.
the sum for 3 + 5 = 8.

The sum for 4 + 4 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 4.
4 + 4 = 8.
the sum for 4 + 4 = 8.

Question 19.
THINK SMARTER
Color two ways to make 7.

The sum for 2 + 5 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 5.
2 + 5 = 7.
the sum for 2 + 5 = 7.

The sum for 5 + 2 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 2.
5 + 2 = 7.
the sum for 5 + 2 = 7.

TAKE HOME ACTIVITY
• Write 6 = 6 + 0. Model the problem with small objects. Ask your child to make 6 another way. Take turns until you and your child model all of the ways to make 6.

The sum for 0 + 6 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 6.
0 + 6 = 6.
the sum for 0 + 6 = 6.

### Algebra • Put Together Numbers to 10 Homework & Practice 1.7

Use . Color to show how to make 8. Complete the addition sentences.

Question 1.

Question 2.

8 = _1__ + _7__

The sum for 1 + 7 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 7.
1 + 7 = 8.
the sum for 1 + 7 = 8.

Question 3.

8 = _2__ + _6_

The sum for 2 + 6 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 6.
2 + 6 = 8.
the sum for 2 + 6 = 8.

Question 4.

8 = _3__ + _5__

The sum for 3 + 5 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 5.
3 + 5 = 8.
the sum for 3 + 5 = 8.

Question 5.

8 = _4__ + _4__

The sum for 4 + 4 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 4.
4 + 4 = 8.
the sum for 4 + 4 = 8.

Question 6.

8 = _5__ + __3_

The sum for 5 + 3 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 3.
5 + 3 = 8.
the sum for 5 + 3 = 8.

Question 7.

8 = __6_ + _8__

The sum for 6 + 2 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 2.
6 + 2 = 8.
the sum for 6 + 2 = 8.

Question 8.
WRITE Math
Use pictures and numbers to show all the ways to make 3.

The sum for 3 + 0 = 3.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 0.
3 + 0 = 3.
the sum for 3 + 0 = 3.

The sum for 2 + 1 = 3.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 1.
2 + 1 = 3.
the sum for 2 + 1 = 3.

The sum for 1 + 2 = 3.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 2.
1 + 2 = 3.
the sum for 1 + 2 = 3.

The sum for 0 + 3 = 3.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 3.
0 + 3 = 3.
the sum for 0 + 3 = 3.

Lesson Check

Question 1.
Show three different ways to make 10.
10 = _4_ + __6_ 10 = _6_ + _4_ 10 = _5_ + _5__

The sum for 4 + 6 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 10.
4 + 6 = 10.
the sum for 4 + 6 = 10.

The sum for 5 + 5 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 5.
5 + 5 = 10.
the sum for 5 + 5 = 10.

The sum for 6 + 4 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 4.
6 + 4 = 10.
the sum for 6 + 4 = 10.

Question 2.
Show three different ways to make 6.
6 = _2__ + _4__ 6 = _4_ + _2__ 6 = _3_ + _3__

The sum for 2 + 4 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 4.
2 + 4 = 6.
the sum for 2 + 4 = 6.

The sum for 4 + 2 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 2.
4 + 2 = 6.
the sum for 4 + 2 = 6.

The sum for 3 + 3 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 3.
3 + 3 = 6.
the sum for 3 + 3 = 6.

Spiral Review

Question 3.
Circle the number sentences that show the same addends in a different order.

The sum for 4 + 2 = 6.
The sum for 5 + 1 = 6.
The sum for 2 + 4 = 7.

Explanation:
In the above-given question,
given that,
The sum for 4 + 2 = 6.
The sum for 5 + 1 = 6.
The sum for 2 + 4 = 7.

Question 4.
What is the sum for 2 + 0? Write the sum.
2 + 0 = _2_

The sum for 2 + 0 = 2.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 0.
2 + 0 = 2.
the sum for 2 + 0 = 2.

Question 5.
Complete the model and the number sentence. 3 rabbits sit in the grass. 4 more rabbits join them. How many rabbits are there now?

3 + 4 = _7_
_7_ rabbits

The number of rabbits = 7.

Explanation:
In the above-given question,
given that,
3 rabbits sit in the grass.
4 more rabbits join them.
3 + 4 = 7.
so the number of rabbits = 7.

### Lesson 1.8 Addition to 10

Essential Question

Listen and Draw

Draw a picture to show the problem. Then write the addends and the sum in two ways.

The sum for 1 + 2 = 3.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 2.
1 + 2 = 3.
the sum for 1 + 2 = 3.

The sum for 0 + 3 = 3.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 3.
0 + 3 = 3.
the sum for 0 + 3 = 3.

Math Talk
MATHEMATICAL PRACTICES
Look for Structure Why is the sum the same when you add across or down?

Model and Draw

The number of bees = 4.

Explanation:
In the above-given question,
given that,
there are 2 bees and 2 more bees.
2 + 2 = 4.
so the number of bees = 4.

The number of flower pots = 7.

Explanation:
In the above-given question,
given that,
there are 3 blue flower pots and 4 more purple flowerpots.
4 + 3 = 7.
so the number of flower pots = 7.

Share and Show MATH BOARD

Question 1.

The number of flowers = 7.

Explanation:
In the above-given question,
given that,
there are 3 white flowers and 4 pink flowers.
4 + 3 = 7.
so the number of flowers = 7.

Question 2.

The number of bees = 5.

Explanation:
In the above-given question,
given that,
there are 2 bees and 3 more bees.
2 + 3 = 5.
so the number of bees = 5.

Question 3.

The number of ants = 6.

Explanation:
In the above-given question,
given that,
there are 5 ants and 1 more ant.
5 + 1 = 6.
so the number of ants = 6.

Question 4.

The number of leaves = 10.

Explanation:
In the above-given question,
given that,
there are 8 green leaves and 2 more leaves.
8 + 2 = 10.
so the number of leaves = 10.

MATHEMATICAL PRACTICE
Attend to Precision Write the sum.

Question 5.

The sum for 1 + 2 = 3.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 2.
1 + 2 = 3.
the sum for 1 + 2 = 3.

Question 6.

The sum for 2 + 2 = 4.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 2.
2 + 2 = 4.
the sum for 2 + 2 = 4.

Question 7.

The sum for 0 + 3 = 3.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 3.
0 + 3 = 3.
the sum for 0 + 3 = 3.

Question 8.

The sum for 1 + 1 = 2.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 1.
1 + 1 = 2.
the sum for 1 + 1 = 2.

Question 9.

The sum for 4 + 2 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 2.
4 + 2 = 6.
the sum for 4 + 2 = 6.

Question 10.

The sum for 8 + 1 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 8 and 1.
8 + 1 = 9.
the sum for 8 + 1 = 9.

Question 11.

The sum for 0 + 4 = 4.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 4.
0 + 4 = 4.
the sum for 0 + 4 = 4.

Question 12.

The sum for 7 + 3 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 7 and 3.
7 + 3 = 10.
the sum for 7 + 3 = 10.

Question 13.

The sum for 4 + 4 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 4.
4 + 4 = 8.
the sum for 4 + 4 = 8.

Question 14.

The sum for 9 + 1 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 9 and 1.
9 + 1 = 10.
the sum for 9 + 1 = 10.

Question 15.

The sum for 6 + 3 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 3.
6 + 3 = 9.
the sum for 6 + 3 = 9.

Question 16.

The sum for 4 + 3 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 3.
4 + 3 = 7.
the sum for 4 + 3 = 7.

Question 17.
THINK SMARTER
Ella put 2 marbles in a bag. John put 3 marbles in the bag. How many marbles are in the bag?
_5_ marbles

The number of marbles in the bag = 5.

Explanation:
In the above-given question,
given that,
Ella put 2 marbles in a bag and John put 3 marbles in the bag.
2 + 3 = 5.
so the number of marbles in the bag = 5.

Question 18.
THINK SMARTER
Explain. Sam showed how he added 4 1 2. Tell how Sam could find the correct sum.

The sum for 4 + 2 + 1 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 2 and 1.
4 + 2 + 1 = 7.
the sum for 4 + 3 = 7.

Problem Solving • Applications

Question 19.
Add. Write the sum. Use the sum and the key to color the flower.

The sum for 4 + 3 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 3.
4 + 3 = 7.
the sum for 4 + 3 = 7.

The sum for 0 + 9 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 9.
0 + 9 = 9.
the sum for 0 + 9 = 9.

The sum for 3 + 7 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 7.
3 + 7 = 10.
the sum for 3 + 7 = 10.

The sum for 4 + 5 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 5.
4 + 5 = 9.
the sum for 4 + 5 = 9.

The sum for 6 + 4 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 4.
6 + 4 = 10.
the sum for 6 + 4 = 10.

The sum for 5 + 3 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 3.
5 + 3 = 8.
the sum for 5 + 3 = 8.

The sum for 5 + 5 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 5.
5 + 5 = 10.
the sum for 5 + 5 = 10.

Question 20.
GO DEEPER
How many flowers are yellow or purple?

The number of flowers = 7.

Explanation:
In the above-given question,
given that,
there are 3 yellow flowers and 4 purple flowers.
4 + 3 = 7.
so the number of flowers = 7.

Question 21.
THINK SMARTER
Write the sum. Explain how you solved the problem.

The sum for 5 + 4 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 4.
5 + 4 = 9.
the sum for 5 + 4 = 9.

TAKE HOME ACTIVITY

### Addition to 10 Homework & Practice 1.8

Write the sum.

Question 1.

The sum for 4 + 1 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 1.
4 + 1 = 5.
the sum for 4 + 1 = 5.

Question 2.

The sum for 2 + 6 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 6.
2 + 6 = 8.
the sum for 2 + 6 = 8.

Question 3.

The sum for 4 + 3 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 3.
4 + 3 = 7.
the sum for 4 + 3 = 7.

Question 4.

The sum for 5 + 1 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 1.
5 + 1 = 6.
the sum for 5 + 1 = 6.

Question 5.

The sum for 8 + 0 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 8 and 0.
8 + 0 = 8.
the sum for 8 + 0 = 8.

Question 6.

The sum for 2 + 3 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 3.
2 + 3 = 5.
the sum for 2 + 3 = 5.

Question 7.

The sum for 0 + 0 = 0.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 0.
0 + 0 = 0.
the sum for 0 + 0 = 0.

Question 8.

The sum for 5 + 5 = 10.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 5.
5 + 5 = 10.
the sum for 5 + 5 = 10.

Problem Solving

Add. Write the sum. Use the sum and the key to color the flower.

Question 9.

The sum for 4 + 5 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 5.
4 + 5 = 9.
the sum for 4 + 5 = 9.

The sum for 2 + 5 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 5.
2 + 5 = 7.
the sum for 2 + 5 = 7.

The sum for 7 + 1 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 7 and 1.
7 + 1 = 8.
the sum for 7 + 1 = 8.

Question 10.
WRITE Math
Explain how knowing 1 + 7 helps you find the sum for 7 + 1.
___1__+__7_=_8__
_7__+__1_=_8____
__6 __+ 2  =  8__
__5__+_3_=_8___

The sum for 1 + 7 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 7.
1 + 7 = 8.
the sum for 1 + 7 = 8.

The sum for 7 + 1 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 7 and 1.
7 + 1 = 8.
the sum for 7 + 1 = 8.

Lesson Check

Question 1.
Write the sum.

The sum for 5 + 3 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 3.
5 + 3 = 8.
the sum for 5 + 3 = 8.

Spiral Review

Question 2.
Show three different ways to make 9.
9 = __4_ + _5__ 9 = _5__ + _4__ 9 = _6__ + __3_

The sum for 4 + 5 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 5.
4 + 5 = 9.
the sum for 4 + 5 = 9.

The sum for 5 + 4 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 4.
5 + 4 = 9.
the sum for 5 + 4 = 9.

The sum for 6 + 3 = 9.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 3.
6 + 3 = 9.
the sum for 6 + 3 = 9.

Question 3.
Complete the number sentence. There are 8 large stones and 2 small stones. How many stones are there?
__10_ stones 8 + 2 = _10__

The number of stones = 10.

Explanation:
In the above-given question,
given that,
There are 8 large stones and 2 small stones.
8 + 2 = 10.
so the number of stones = 10.

Question 4.
Complete the number sentence. What is the sum of 2 and 2?
2 + 2 = _4_

The sum for 2 + 2 = 4.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 2.
2 + 2 = 4.
the sum for 2 + 2 = 4.

Question 1.

The number of bears = 3.

Explanation:
In the above-given question,
given that,
there are 2 bears and 1 more bears.
2 + 1 = 3.
so the number of bears = 3.

Question 2.

The number of parrots = 5.

Explanation:
In the above-given question,
given that,
there are 3 parrots and 2 more parrots.
3 + 2 = 5.
so the number of parrots = 5.

Question 3.
Color two ways to make 6.

The sum for 2 + 4 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 4.
2 + 4 = 6.
the sum for 2 + 4 = 6.

The sum for 4 + 2 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 4 and 2.
4 + 2 = 6.
the sum for 4 + 2 = 6.

Question 4.
Choose all the pictures that show adding zero.

The sum for 0 + 6 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 0 and 6.
0 + 6 = 6.
the sum for 0 + 6 = 6.

The sum for 6 + 0 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 6 and 0.
6 + 0 = 6.
the sum for 6 + 0 = 6.

Question 5.
Draw lines to match addition sentences with the same addends in a different order.

The sum for 8 + 2 = 10.
The sum for 2 + 7 = 9.
The sum for 4 + 5 = 9.

Explanation:
In the above-given question,
given that,
The sum for 8 + 2 = 10.
The sum for 2 + 7 = 9.
The sum for 4 + 5 = 9.

Use to show adding to. Draw the . Write the sum.

Question 6.
2 ducks and 3 more ducks
2 + 3 = _5_

The sum for 2 + 3 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 3.
2 + 3 = 5.
the sum for 2 + 3 = 5.

Question 7.
5 lions and 2 more lions
5 + 2 = _7_

The sum for 5 + 2 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 2.
5 + 2 = 7.
the sum for 5 + 2 = 7.

Question 8.
Write each addition sentence in the box that shows the sum.

The sum for 3 + 4 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 4.
3 + 4 = 7.
the sum for 3 + 4 = 7.

The sum for 3 + 3 = 6.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 3.
3 + 3 = 6.
the sum for 3 + 3 = 6.

The sum for 5 + 3 = 8.

Explanation:
In the above-given question,
given that,
the sum of numbers 5 and 3.
5 + 3 = 8.
the sum for 5 + 3 = 8.

Question 9.
GO DEEPER
Max has 5 red marbles and 4 blue marbles. Then he gets 1 more. How many marbles does Max have? Draw to show your work.

Write how many _10_ marbles

The number of marbles Max have = 10.

Explanation:
In the above-given question,
given that,
Max has 5 red marbles and 4 blue marbles.
Then he gets 1 more.
5 + 4 + 1 = 10.
so the number of marbles Max have = 10.

Question 10.
THINK SMARTER
There are 2 people in the house. More people go in the house. Then there are 6 people in the house. How many people go in the house?

2 + _4_ = 6

The number of people go in the house = 4.

Explanation:
In the above-given question,
given that,
there are 2 people in the house.
More people go in the house.
2 + 4 = 6.
so the number of people go in the house = 4.

Question 11.
Katie is drawing dots on cards to show ways to make 7. Draw dots for Katie.
Write addition sentences for two of the cards.

The sum for 1 + 6 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 6.
1 + 6 = 7.
the sum for 1 + 6 = 7.

The sum for 2 + 5 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 5.
2 + 5 = 7.
the sum for 2 + 5 = 7.

The sum for 3 + 4 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 3 and 4.
3 + 4 = 7.
the sum for 3 + 4 = 7.

The sum for 2 + 5 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 2 and 5.
2 + 5 = 7.
the sum for 2 + 5 = 7.

The sum for 1 + 6 = 7.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 6.
1 + 6 = 7.
the sum for 1 + 6 = 7.

Question 12.
Draw a model to show that 1 + 4 is the same as 4 + 1. Show how you know.

The sum for 1 + 4 = 5.

Explanation:
In the above-given question,
given that,
the sum of numbers 1 and 4.
1 + 4 = 5.
the sum for 1 + 4 = 5.