## Engage NY Eureka Math 2nd Grade Module 2 Lesson 2 Answer Key

### Eureka Math Grade 2 Module 2 Lesson 2 Problem Set Answer Key

Find the length of each object using one centimeter cube.

Mark the endpoint of each centimeter cube as you measure.

Question 1.

The picture of the eraser is about __4__ centimeters long.

Answer:

The picture of the eraser is about 4 centimeters long,

Explanation:

As shown in the picture above the eraser is 4 centimeters long.

Question 2.

The picture of the calculator is about __6__ centimeters long.

Answer:

The picture of the calculator is about 6 centimeters long,

Explanation:

As shown in the picture the calculator is about 6 centimeters long.

Question 3.

The length of the picture of the envelope is about ___10___ centimeters.

Answer:

The length of the picture of the envelope is about 10 centimeters,

Explanation:

As shown above the length of the picture of the envelope is

about 10 centimeters.

Question 4.

Jayla measured her puppet’s legs to be 23 centimeters long.

The stomach is 7 centimeters long, and the neck and head

together are 10 centimeters long. What is the total length of the puppet?

Answer:

The total length of the puppet is 40 centimeters,

Explanation:

Given Jayla measured her puppet’s legs to be 23 centimeters long.

The stomach is 7 centimeters long, and the neck and head

together are 10 centimeters long.

Therefore the total length of the puppet is

23 + 7 + 10 = 40 centimeters.

Question 5.

Elijah begins measuring his math book with his centimeter cube.

He marks off where each cube ends. After a few times, he decides

this process is taking too long and starts to guess where the cube

would end and then mark it.

Explain why Elijah’s answer will be incorrect.

____________Elijah’s answer is incorrect,_______________

________________________________________________________

Answer:

Elijah’s answer is incorrect,

Explanation:

Elijah’s answer is incorrect, why because not every

space is exactly one centimeter cube. So Elijah guess

work is incorrect.

### Eureka Math Grade 2 Module 2 Lesson 2 Exit Ticket Answer Key

Matt measured his index card using a centimeter cube.

He marked the endpoint of the cube as he measured.

He thinks the index card is 10 centimeters long.

a. Is Matt’s work correct? Explain why or why not.

______Yes Matt’s work is correct,_____

_____________________________________________

_____________________________________________

Answer:

Yes, Matt’s work is correct,

Explanation:

Given Matt measured his index card using a centimeter cube.

He marked the endpoint of the cube as he measured.

He thinks the index card is 10 centimeters long, Yes Matt

is correct why because if we count he exactly measured 10

centimeters so Matt is correct.

b. If you were Matt’s teacher what would you tell him?

_____________________________________________

_____________________________________________

_____________________________________________

Answer:

I would tell him his measuring method is correct,

Explanation:

If I were Matt’s teacher I would you tell him that his method

of measuring index card using a centimeter cube and

marking the endpoint of the cube as he measured is correct.

### Eureka Math Grade 2 Module 2 Lesson 2 Homework Answer Key

Use the centimeter square at the bottom of the next page to

measure the length of each object. Mark the endpoint of the

square as you measure.

Question 1.

The picture of the glue is about ___4_____ centimeters long.

Answer:

The picture of the glue is about __4__ centimeters long,

Explanation:

As shown the picture of the glue is about 4 centimeters long.

Question 2.

The picture of the lollipop is about ___6____ centimeters long.

Answer:

The picture of the lollipop is about 6 centimeters long,

Explanation:

As shown above the picture of the lollipop is about

5 centimeters long.

Question 3.

The picture of the scissors is about ___5_____ centimeters long.

Answer:

The picture of the scissors is about ___5_____ centimeters long,

Explanation:

As shown the picture of the scissors is about 5 centimeters long.

Question 4.

Samantha used a centimeter cube and the mark and move

forward strategy to measure these ribbons. Use her work to

answer the following questions.

a. How long is the red ribbon? _____10_____ centimeters long.

Answer:

The red ribbon is 10 centimeters long,

Explanation:

Samantha used a centimeter cube and the marker and moved

forward strategy to measure, So the red ribbon is

10 centimeters long.

b. How long is the blue ribbon? _____7______ centimeters long.

Answer:

Blue ribbon is 7 centimeters long,

Explanation:

Samantha used a centimeter cube and the marker and moved

forward strategy to measure, So the blue ribbon is

7 centimeters long.

c. How long is the yellow ribbon? ____5_______ centimeters long.

Answer:

The yellow ribbon is 5 centimeters long,

Explanation:

Samantha used a centimeter cube and the marker and moved

forward strategy to measure, So the yellow ribbon is

5 centimeters long.

d. Which ribbon is the longest? Red Blue Yellow

Answer:

Among the three Red ribbon is the longest,

Explanation:

As per Samantha’s measurements

red ribbon is 10 centimeters long,

blue ribbon is 7 centimeters long and

yellow ribbon is 5 centimeters long, So

among the three Red ribbon is the longest.

e. Which ribbon is the shortest? Red Blue Yellow

Answer:

Among the three Yellow ribbon is 5 centimeters and shortest,

Explanation:

As per Samantha’s measurements

red ribbon is 10 centimeters long,

blue ribbon is 7 centimeters long and

yellow ribbon is 5 centimeters long, So

among the three Yellow ribbon is the shortest.

f. The total length of the ribbons is __22___ centimeters.

Answer:

The total length of the ribbons is 22 centimeters,

Explanation:

The total length of the three ribbons are as

red ribbon is 10 centimeters long,

blue ribbon is 7 centimeters long and

yellow ribbon is 5 centimeters long,

10 + 7 + 5 = 22 centimeters.