Refer to our Texas Go Math Grade 4 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 4 Lesson 6.1 Answer Key Add Whole Numbers.

## Texas Go Math Grade 4 Lesson 6.1 Answer Key Add Whole Numbers

**Essential Question**

How can you add whole numbers?

Answer:

First adding the ones then tens then hundreds

As so on the whole numbers are added

**Unlock the Problem**

The area of Alaska is outlined in the photo above.

Alaska is the largest state in the United States by area. Its land area is 570,374 square miles and its water surface area is 86,051 square miles. Find the total area of Alaska.

Underline what you are asked to find.

Circle the information you will use.

Answer:

Find the sum.

Add. 570,374 + 86,051

Think: It is important to line up the addends by place value when adding two numbers

STEP 1

12 tens = 1 hundred ___________ tens

Answer:

Explanation:

12 tens = 1 hundred 2 tens

STEP 2

Answer:

7 + 5 = 12

1 is taken is carry and 2 is written as the denominator

STEP 3

Answer:

Explanation:

15 ten thousands is equal to 1 hundred thousand and 5 ten thousands

STEP 4

Answer:

So, the total area of Alaska is _____________ square miles.

Answer:

So, the total area of Alaska is 656425 square miles.

**Math Talk**

Mathematical Processes

Explain how you know when to regroup when adding.

Answer:

If the sum is in tens then we have to regroup to tens and ones separately.

**Estimate** You can estimate to tell whether an answer is reasonable.

To estimate a sum, round each addend before you add.

**Example** Estimate. Then find the sum.

Juneau has an area of 2,717 square miles. Valdez has an area of 222 square miles. What is their combined area?

(A) Estimate. Use the grid to help you align the addends by place value.

So, the combined area of Juneau and Valdez is about ____________ square miles.

Answer:

Explanation:

So, the combined area of Juneau and Valdez is about 3200 square miles.

**ERROR Alert** Remember to align the addends by place value.

(B) Find the sum.

So, the combined area of Juneau and Valdez is ____________ square miles.

Answer:

Is the sum reasonable? Explain.

Answer:

So, the combined area of Juneau and Valdez is 2939 square miles.

Yes, the sum is very reasonable

The difference is only 300.

**Share and Show**

Question 1.

Use the grid to find 738,901 + 162,389.

Use the grid to align the addends by place value.

Answer:

Explanation:

Aligned the addends by place value.

**Estimate.** Then find the sum.

Question 2.

Estimate: ____________

Answer:

Explanation:

72000 + 18000 = 90,000

Estimated value is 90,000

Question 3.

Estimate: ____________

Answer:

Explanation:

430000 + 230000 = 660000

The estimated value is 660,000

Question 4.

Estimate: ____________

Answer:

Explanation:

64,000 + 38,000 = 102,000

The Estimated value is 102,000

**Math Talk**

Mathematical Processes

Explain how you know your answer for Exercise 2 is reasonable.

Answer:

The estimated value should be near by the exact value.

**Problem Solving**

Use the table for 5-8.

Question 5.

Evaluate Reasonableness Use estimation to show your answer is reasonable. What is the combined population of Fairbanks and Juneau?

Answer:

Estimated value is 35000 + 30000 = 65000

Explanation:

35,252 + 30,796 = 66048

The estimated value is very near to the original value.

Question 6.

**H.O.T.** Pose a Problem Look at Problem 5. Write and solve a similar problem.

Answer:

What is the combined population of Anchorage and Fairbanks

286174 + 35252 = 321426

Explanation:

The combined population of Anchorage and Fairbanks is 321,426

Question 7.

**H.O.T.** **Multi-Step** Evaluate Reasonableness What is the combined population of the three major Alaskan cities? Estimate to verify your answer.

Answer: the total is 352,222 Estimated is 345,000

Explanation:

Anchorage =286174

Fairbanks = 35252

Juneau = 30,796

the total is 352,222

Estimated values are

280000 + 35000 + 30000

345,000

Question 8.

**Write Math Multi-Step** The digit 5 occurs two times in the population of Fairbanks. That ¡s the value of each 5? Explain your answer.

Answer:

In the total value the 5 value is 5 Ten thousands

And estimated value is 5 thousands

**Daily Assessment Task**

**Fill in the bubble completely to show your answer.**

Question 9.

The water slide is the most popular ride at Water World. In the first year, 34,573 visitors rode the water slide. In the second year, 56,364 visitors rode the water slide. How many visitors rode the water slide in the first two years?

(A) 80,837

(B) 90,137

(C) 90,937

(D) 81,937

Answer: C

Explanation:

34,573 visitors + 56,364 visitors = 90,937 visitors rode the water slide in the first two years

Question 10.

A sports store had 17,631 customers in May. The number of customers in June was 4,385 more than the store had in May. How many customers did the store have in June?

(A) 21,016

(B) 11,916

(C) 61,481

(D) 22,016

Answer: D

Explanation:

17,631 + 4,385 = 22,016 customers did the store have in June.

Question 11.

**Multi-Step** A rock band played on Friday night, Saturday night, and Sunday afternoon. On each of the two nights, 11,452 people bought tickets to see the band. On Sunday afternoon, 10,310 people bought tickets. In all, how many people bought tickets to see the band?

(A) 22,904

(B) 32,114

(C) 33,214

(D) 21,762

Answer: D

11,452 + 10,310 = 21,762 people bought tickets to see the band.

**TEXAS Test Prep**

Question 12.

Alaska’s Glacier Bay National Park had 418,911 visitors in 2008. The park had 25,742 more visitors in 2009 than in 2008. How many people visited the park in 2008 and 2009 combined?

(A) 862,564

(B) 852,564

(C) 863,564

(D) 963,564

Answer: C

Explanation:

418,911 + 25,742 = 444653 in 2009

418911 + 444653 = 863564 people visited the park in 2008 and 2009 combined

### Texas Go Math Grade 4 Lesson 6.1 Homework and Practice Answer Key

Use the grid to find the sum.

Question 1.

382,654 + 436,807

Answer:

Explanation:

382,654 + 436,807 = 819,467

By using the grid to align the addends by place value

Question 2.

634,731 + 182,169

Answer:

Explanation:

634,731 + 182,169 = 816,900

By using the grid to align the addends by place value

**Estimate.** Then find the sum.

Question 3.

Estimate: _____________

Answer:

Explanation:

Estimate: 30000 + 40000 = 70000

Question 4.

Estimate: _____________

Answer:

Explanation:

Estimate: 200000 + 200000 = 400000

Question 5.

Estimate: _____________

Answer:

Explanation:

Estimate: 630000 + 280000 = 910000

Question 6.

Estimate: _____________

Answer:

Explanation:

Estimate: 86000 + 51000 = 137000

**Problem Solving**

Use the table for 7-8.

Question 7.

What is the combined population of Austin and Fort Worth? Estimate to verify your answer.

Answer: 970,390 + 741,206 = 1,711,596

Explanation:

Estimation population are 970000 + 740000 = 1710000

Estimated to verify

Question 8.

What is the combined population of Fort Worth and El Paso? Estimate to verify your answer.

Answer: 649121+ 741,206 = 1,390,327

Explanation:

Estimation population are 640000 + 740000 = 1380000

Estimated to verify

**Lesson Check**

Fill in the bubble completely to show your answer.

Question 9.

A department store had 17,296 customers 10 in November and 21,034 customers in December. How many customers did the store have in November and December combined?

(A) 38,220

(B) 38,320

(C) 28,230

(D) 38,330

Answer: D

Explanation:

17,296 + 21,034 = 38,330 is the customers in the store that have in November and December combined

Question 10.

A recycling center collected 28,473 cans during its first year of operation. In the second year, the center collected 39,784 cans. How many cans were collected in the first two years?

(A) 58,157

(B) 68,257

(C) 68,157

(D) 67,257

Answer: B

Explanation:

28,473 + 39,784 = 68,257 cans were collected in the first two years

Question 11.

The Megaplex Movie Theater sold 47,328 tickets on Saturday. On Sunday, the theater sold 39,573 tickets. What is the total number of tickets sold on Saturday and Sunday?

(A) 86,901

(B) 86,801

(C) 76,901

(D) 76,801

Answer: A

Explanation:

47,328 + 39,573 = 86,901 the total number of tickets sold on Saturday and Sunday

Question 12.

During one month, 208,350 people visited the Alamo. The next month 197,695 visited the site. How many people visited the Alamo during these two months?

(A) 405,945

(B) 405,045

(C) 395,945

(D) 406,045

Answer: D

Explanation:

208,350 + 197,695 = 406,045 people visited the Alamo during these two months.

Question 13.

Multi-Step For the first football game of the season, 62,732 fans attended. The number of fans at the second game was 469 more than at the first game. What is the total number of fans that attended the first two games?

(A) 124,623

(B) 124,933

(C) 125,933

(D) 125,923

Answer: C

Explanation:

62,732 + 469 = 63201

62732 + 63201 = 125,933 the total number of fans that attended the first two games

Question 14.

Multi-Step Daisy’s Flower Shop sold 135,649 flowers during its first year. The second year, the shop sold an additional 9,754 flowers. How many flowers did the shop sell in these two years?

(A) 280,952

(B) 281,052

(C) 281,042

(D) 280,052

Answer: B

Explanation:

135,649 + 9,754 = 145403

135,649 + 145403 = 281,052 flowers that the shop sell in these two years