## Engage NY Eureka Math 4th Grade Module 1 Lesson 7 Answer Key

### Eureka Math Grade 4 Module 1 Lesson 7 Problem Set Answer Key

Question 1.

Round to the nearest thousand. Use the number line to model your thinking.

a. 6,700 â‰ˆ _________________

Answer:

b. 9,340 â‰ˆ _________________

Answer:

c. 16,401 â‰ˆ _________________

Answer:

d. 39,545 â‰ˆ _________________

Answer:

e. 399,499 â‰ˆ _________________

Answer:

f. 840,007 â‰ˆ _________________

Answer:

Question 2.

A pilot wanted to know about how many kilometers he flew on his last 3 flights. From NYC to London, he flew 5,572 km. Then, from London to Beijing, he flew 8,147 km. Finally, he flew 10,996 km from Beijing back to NYC. Round each number to the nearest thousand, and then find the sum of the rounded numbers to estimate about how many kilometers the pilot flew.

Answer:

Readings of the 3 flights a pilot flew are

From NYC to London = 5,572 km

From London to Beijing = 8,147 km

From Beijing back to NYC = 10,996 km

The sum of the rounded numbers to estimate about how many kilometers the pilot flew is **24,500 km**.

Question 3.

Mrs. Smithâ€™s class is learning about healthy eating habits. The students learned that the average child should consume about 12,000 calories each week. Kerry consumed 12,748 calories last week. Tyler consumed 11,702 calories last week. Round to the nearest thousand to find who consumed closer to the recommended number of calories. Use pictures, numbers, or words to explain.

Answer:

Mrs.Smith’s class is learning about healthy eating habits.

The average calories a child should consume each week = 12,000.

Number of calories Kerry consumed last week = 12,748

Number of calories Tyler consumed last week = 11,702

Question 4.

For the 2013-2014 school year, the cost of tuition at Cornell University was $43,000 when rounded to the nearest thousand. What is the greatest possible amount the tuition could be? What is the least possible amount the tuition could be?

Answer:

For the year 2013 – 2014 school year

The cost of tuition at Cornell University was $43,000

### Eureka Math Grade 4 Module 1 Lesson 7 Exit Ticket Answer Key

Question 1.

Round to the nearest thousand. Use the number line to model your thinking.

a. 7,621 â‰ˆ ___________

Answer:

b. 12,502 â‰ˆ ___________

Answer:

c. 324,087 â‰ˆ ___________

Answer:

Question 2.

It takes 39,090 gallons of water to manufacture a new car. Sammy thinks that rounds up to about 40,000 gallons. Susie thinks it is about 39,000 gallons. Who rounded to the nearest thousand, Sammy or Susie? Use pictures, numbers, or words to explain.

Answer:

To manufacture a new car it takes = 39,090 gallons.

Sammy thinks that rounds up to = 40,000 gallons

Susie thinks that rounds up to = 39,000 gallons.

Susie rounded to the nearest thousand.

### Eureka Math Grade 4 Module 1 Lesson 7 Homework Answer Key

Question 1.

Round to the nearest thousand. Use the number line to model your thinking.

a. 5,900 â‰ˆ _________________

Answer:

b. 4,180 â‰ˆ _________________

Answer:

c. 32,879 â‰ˆ _________________

Answer:

d. 78,600 â‰ˆ _________________

Answer:

e. 251,031 â‰ˆ _________________

Answer:

f. 699,900 â‰ˆ _________________

Answer:

Question 2.

Steven put together 981 pieces of a puzzle. About how many pieces did he put together? Round to the nearest thousand. Use what you know about place value to explain your answer.

Answer:

Steven put together 981 pieces of a puzzle.

Steven put together around 1,000 pieces of puzzle.

Question 3.

Louiseâ€™s family went on vacation to Disney World. Their vacation cost $5,990. Sophiaâ€™s family went on vacation to Niagara Falls. Their vacation cost $4,720. Both families budgeted about $5,000 for their vacation. Whose family stayed closer to the budget? Round to the nearest thousand. Use what you know about place value to explain your answer.

Answer:

Louise’s family vacation cost to Disney WorldÂ was = $5,990

Sophia’s family vacation cost to Niagara Falls was = $4,720

Sophia’s family stayed closer to the budget.

Question 4.

Marshaâ€™s brother wanted help with the first question on his homework. The question asked the students to round 128,902 to the nearest thousand and then to explain the answer. Marshaâ€™s brother thought that the answer was 128,000. Was his answer correct? How do you know? Use pictures, numbers, or words to explain.

Answer:

Marshaâ€™s brother wanted help round 128,902 to the nearest thousand =

129,000 is the nearest thousand from the below image.

Marshaâ€™s brother thought that the answer was 128,000 which was not correct.as the difference between 128,902 and 128,000 =902.

Whereas the difference between 129,000 and 128,902 = 98.

On comparing the difference 98 is less than 902. So, 129,000 is the nearest thousand to 128,902.