Refer to our Texas Go Math Grade 2 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 2 Unit 2 Answer Key Number and Operations: Computation, Money, and Equal Groups.
Texas Go Math Grade 2 Unit 2 Answer Key Number and Operations: Computation, Money, and Equal Groups
Show What You Know
Check your understanding of important skills.
Differences to 10
Write the difference.
Question 1.
6 – 2 = _________
Answer:
4
Explanation:
Difference between 6 and 2 is 4
Question 2.
7 – 4 = ___________
Answer:
3
Explanation:
Difference between 7 and 4 is 3
Question 3.
10 – 4 = ___________
Answer:
6
Explanation:
Difference between 10 and 4 is 6
Model Tens and Ones to 100
Write how many tens and ones. Write the number.
Question 4.
__________ tens _________ ones = ___________
Answer:
5 tens 4 ones = 54
Explanation:
5 tens and 4 ones is equal to 54.
50 + 4 = 54
Question 5.
__________ tens _________ ones = ___________
Answer:
4 tens 5 ones = 45
Explanation:
4 tens and 5 ones is equal to 45.
40+ 5 = 45
Regroup Tens as Ones.
Regroup 1 ten as 10 ones. Write how many.
Question 6.
47 = 4 tens 7 ones
47 = __________ tens _________ ones
Answer:
47 = 47 ones
Explanation:
1 ten = 10 ones
so
4 tens = 40 ones
47 = 4 tens 7 ones = 40 ones and 7 ones = 47 ones
Question 7.
35 = 3 tens 5 ones
35 = __________ tens _________ ones
Answer:
47 = 35 ones
Explanation:
1 ten = 10 ones
so
3 tens = 30ones
35= 3 tens 5 ones = 30 ones and 5 ones = 35ones
Vocabulary Builder
Visualize It
Fill in the boxes of the graphic organizer.
Review words
difference
regroup
tens
ones
digit
Explanation:
Understand Vocabulary
Draw a line to complete the sentence.
Answer:
Explanation:
Sentences are matched to appropriate sentences
Vocabulary Reader
Tasha’s Cranes
written by Mike Mason
This Take-Home Book belongs to
Tasha folded paper cranes For her senior center friends. She needs 100 cranes in all. She will make them by the tens.
Answer: 10 tens
Explanation:
10 tens = 100 ones
Tasha started and made just 10. Then she a short rest had to take. She subtracted 10 from 100. Wow! She still had 90 more to make.
Answer:
10 – 1 = 9
10 tens – 1 ten = 9 tens
100 – 10 = 90
Explanation:
The next day she folded 40 cranes. How many more does she need? Find 9 tens take away 4 tens And you will know indeed.
Answer:
9 – 4 = 5
9 tens – 4 tens = 5 tens
90 – 40 = 50
Explanation:
On Friday she made 3 more sets of ten. “Am I done?” she wondered then.
Answer:
5 – 3 = 2
5 tens – 3 tens = 2 tens
50 -30 = 20
Explanation:
5 tens less 3 tens leaves 2 tens to do. So on Saturday she made 20 more. Finally 100 done. She was through!
Answer:
50 + 30 + 20 = 100
At the senior center she gave away the 1 100 cranes—everyone. The senior citizens thanked her for what she had done.
Answer:
Write about the Math
Write Math: Look at the picture. Draw and write your own story about the cranes. Include subtracting tens in your story.
Vocabulary Review
tens
subtract
take away
Answer:
Meara made 5 cranes. she counts 1 as 10.she shared 3 cranes with Meena.
how many does she had?
How Many Tens?
5 tens – 3 tens = 2 tens
This picture shows the cranes that the children in Keisha’s class made.
Question 1.
In the picture of the cranes above, circle groups of tens. How many groups of 10 cranes are there?
__________ groups of 10 cranes
How many cranes are in the picture?
_________ cranes
Answer:
3 groups of 10 cranes
3 x 10 = 30 cranes
Question 2.
Keisha’s classmates want to make 100 crones. How many tens are in 100?
_______ tens
Answer:
10 x 10 = 100
there are 10 tens in the 100
Question 3.
Look at the picture of cranes above. How many more groups of 10 cranes are needed to have 100 cranes in all?
_______ more groups of 10 cranes
Answer:
7 more groups of 10 cranes
are needed to have 100 cranes in all
Math Board: Write a question about the story that has to do with subtracting tens. Have a classmate answer your question.
Answer:
Meshack made 8 cranes
they need 4 out of them for selling
80 – 40 = 40
So he has 4 tens left.