## Engage NY Eureka Math 2nd Grade Module 7 Lesson 15 Answer Key

### Eureka Math Grade 2 Module 7 Lesson 15 Sprint Answer Key

A. Adding and Subtracting by 2

Question 1.

0 + 2 =

Answer:

0 + 2 = 2

Explanation:

Adding any two numbers gives us Sum.

Adding any number to 0 gives the sum the number itself.

Question 2.

2 + 2 =

Answer:

2 + 2 = 4

Question 3.

4 + 2 =

Answer:

4 + 2 = 6

Question 4.

6 + 2 =

Answer:

6 + 2 = 8

Question 5.

8 + 2 =

Answer:

8 + 2 = 10

Explanation:

Adding 8 and 2 gives the sum 10.

Here 1 is carried to the tens place and 0 is represented in the ones place.

Question 6.

10 + 2 =

Answer:

10 + 2 = 12

Question 7.

12 + 2 =

Answer:

12 + 2 = 14

Question 8.

14 + 2 =

Answer:

14 + 2 = 16

Question 9.

16 + 2 =

Answer:

16 +2 = 18

Question 10.

18 + 2 =

Answer:

18 + 2 = 20

Question 11.

20 – 2 =

Answer:

20 – 2 = 18

Question 12.

18 – 2 =

Answer:

18 – 2 = 16

Question 13.

16 – 2 =

Answer:

16 – 2 = 14

Question 14.

14 – 2 =

Answer:

14 – 2 = 12

Question 15.

12 – 2 =

Answer:

12 – 2 = 10

Question 16.

10 – 2 =

Answer:

10 – 2 = 8

Explanation:

Subtracting 10 and 2 gives the difference 8.

Here 1 in tens place and 0 in ones place and subtracting 2 from ones place. Since 0 is less than 2 we borrow 1 from tens place

1 becomes 0 and 0 in the ones place becomes 10 and we subtract 2 from ones 10 we get the difference 8.

Question 17.

8 – 2 =

Answer:

8 – 2 = 6

Question 18.

6 – 2 =

Answer:

6 – 2 = 4

Question 19.

4 – 2 =

Answer:

4 – 2 = 2

Question 20.

2 – 2 =

Answer:

2 – 2 = 0

Question 21.

2 + 0 =

Answer:

2 + 0 = 2

Question 22.

2 + 2 =

Answer:

2 + 2 = 4

Question 23.

2 + 4 =

Answer:

2 + 4 = 6

Question 24.

2 + 6 =

Answer:

2 + 6 = 8

Question 25.

2 + 8 =

Answer:

2 + 8 = 10

Question 26.

2 + 10 =

Answer:

2 + 10 = 12

Question 27.

2 + 12 =

Answer:

2 + 12 = 14

Question 28.

2 + 14 =

Answer:

2 + 14 = 16

Question 29.

2 + 16 =

Answer:

2 + 1 6 = 18

Question 30.

2 + 18 =

Answer:

2 + 1 8 = 20

Question 31.

0 + 22 =

Answer:

0 + 22 = 22

Question 32.

22 + 22 =

Answer:

22 + 22 = 44

Question 33.

44 + 22 =

Answer:

44 + 22 = 66

Question 34.

66 + 22 =

Answer:

66 + 22 = 88

Question 35.

88 – 22 =

Answer:

88 – 22 = 66

Question 36.

66 – 22 =

Answer:

66 – 22 = 44

Question 37.

44 – 22 =

Answer:

44 – 22 = 22

Question 38.

22 – 22 =

Answer:

22 -22 = 0

Explanation:

Subtracting any number by itself gives the difference zero.0

Question 39.

22 + 0 =

Answer:

22 + 0 = 22

Explanation:

Adding Zero to any number gives the sum the number itself.

Question 40.

22 + 22 =

Answer:

22 + 22 = 44

Question 41.

22 + 44 =

Answer:

22 + 44 = 66

Question 42.

66 + 22 =

Answer:

66 + 22 = 88

Question 43.

888 – 222 =

Answer:

888 – 222 = 666

Explanation:

Here a 3 digit number is subtracted from a 3 digit number.

First ones places are subtracted then tens place and then hundreds place.

8 – 6 = 2, 8 – 6 = 2 , 8 – 6 = 2.

222 is the difference.

Question 44.

666 – 222 =

Answer:

666 – 222 = 444

B. Adding and Subtracting by 2

Question 1.

2 + 0 =

Answer:

2 + 0 = 2

Question 2.

2 + 2 =

Answer:

2 + 2 = 4

Question 3.

2 + 4 =

Answer:

2 + 4 = 6

Question 4.

2 + 6 =

Answer:

2 + 6 = 8

Question 5.

2 + 8 =

Answer:

2 + 8 = 10

Question 6.

2 + 10 =

Answer:

2 + 10 = 12

Question 7.

2 + 12 =

Answer:

2 + 12= 14

Question 8.

2 + 14 =

Answer:

2 + 14 = 16

Question 9.

2 + 16 =

Answer:

2 + 16 = 18

Question 10.

2 + 18 =

Answer:

2 + 18 = 20

Question 11.

20 – 2 =

Answer:

20 – 2 = 18

Question 12.

18 – 2 =

Answer:

18 – 2 = 16

Question 13.

16 – 2 =

Answer:

16 – 2 = 14

Question 14.

14 – 2 =

Answer:

14 – 2 = 12

Question 15.

12 – 2 =

Answer:

12 – 2 = 10

Question 16.

10 – 2 =

Answer:

10 – 2 = 8

Question 17.

8 – 2 =

Answer:

8 – 2 = 6

Question 18.

6 – 2 =

Answer:

6 – 2 = 4

Question 19.

4 – 2 =

Answer:

4 – 2 = 2

Question 20.

2 – 2 =

Answer:

2 – 2 = 0

Question 21.

0 + 2 =

Answer:

0 + 2 = 2

Question 22.

2 + 2 =

Answer:

2 + 2 = 4

Question 23.

4 + 2 =

Answer:

4 + 2 = 6

Question 24.

6 + 2 =

Answer:

6 + 2 = 8

Question 25.

8 + 2 =

Answer:

8 + 2 = 10

Question 26.

10 + 2 =

Answer:

10 + 2 = 12

Question 27.

12 + 2 =

Answer:

12 + 2 = 14

Question 28.

14 + 2 =

Answer:

14 + 2 = 16

Question 29.

16 + 2 =

Answer:

16 + 2 = 18

Question 30.

18 + 2 =

Answer:

18 + 2 = 20

Question 31.

0 + 22 =

Answer:

0 + 22 = 22

Question 32.

22 + 22 =

Answer:

22 +22 = 44

Question 33.

22 + 44 =

Answer:

22 +44 = 66

Question 34.

66 + 22 =

Answer:

66 + 22 = 88

Question 35.

88 – 22 =

Answer:

88 – 22 = 66

Question 36.

66 – 22 =

Answer:

66 – 22 = 44

Question 37.

44 – 22 =

Answer:

44 – 22 = 22

Question 38.

22 – 22 =

Answer:

22 -22 = 0

Question 39.

22 + 0 =

Answer:

22 + 0 = 22

Question 40.

22 + 22 =

Answer:

22 +22 = 44

Question 41.

22 + 44 =

Answer:

22 + 44 = 66

Question 42.

66 + 22 =

Answer:

66 + 22 = 88

Question 43.

666 – 222 =

Answer:

666 – 222 = 444

Question 44.

888 – 222 =

Answer:

888 – 222 = 666.

### Eureka Math Grade 2 Module 7 Lesson 15 Problem Set Answer Key

Use your ruler to measure the length of the objects below in inches. Using your ruler, draw a line that is the same length as each object.

Question 1.

a. A pencil is _____ inches.

Answer:

A pencil is _7_ inches.

b. Draw a line that is the same length as the pencil.

Answer:

Question 2.

a. An eraser is ______ inches.

Answer:

An eraser is _3__ inches.

b. Draw a line that is the same length as the eraser.

Answer:

Question 3.

a. A crayon is ______ inches.

Answer:

A crayon is __4____ inches.

b. Draw a line that is the same length as the crayon.

Answer:

Question 4.

a. A marker is _____ inches.

Answer:

A marker is _6____ inches.

b. Draw a line that is the same length as the marker.

Answer:

Question 5.

a. What is the longest item that you measured?

Answer:

The longest item that i measured is Pencil which is 7 inches.

b. How long is the longest item? ______ inches

Answer:

The longest item is 7 inch long.

c. How long is the shortest item? _______ inches

Answer:

The shortest item is 3 inch long and it is an eraser.

d. What is the difference in length between the longest and the shortest items? _____ inches

Answer:

e. Draw a line that is the same as the length you found in (d).

Answer:

Question 6.

Measure and label the length of each side of the triangle using your ruler.

a. Which side is the shortest?

1. Side A

2. Side B

3. Side C

Answer:

Side A = 5 inches

Side B = 4 inches

Side C = 3 inches

The shortest side is Side C with 3 inches.

b. What is the length of Side A? ______ inches

Answer:

The length of Side A = 5 inches.

c. What is the length of Sides C and B together? _____ inches

Answer:

The length of Side C and B together is 3 + 4 = 7 inches.

d. What is the difference between the shortest and longest sides? _____ inches

Answer:

The difference between the shortest and the longest side is

5 – 3 = 2 inches.

Question 7.

Solve.

a. ______ inches = 1 foot

Answer:

1 foot equal to 12 inches.

_**12**__ inches = 1 foot

b. 5 inches + ______ inches = 1 foot

Answer:

1 foot = 12 inches

12 inches – 5 inches = 7 inches

5 inches + _**7**__inches = 1 foot

c. ______ inches + 4 inches = 1 foot

Answer:

1 foot = 12 inches

12 inches – 4 inches = 8 inches

_**8**__ inches + 4 inches = 1 foot

### Eureka Math Grade 2 Module 7 Lesson 15 Exit Ticket Answer Key

Question 1.

Measure and label the sides of the shape below.

Answer:

Question 2.

What is the sum of the length of Side B and the length of Side C? ______ inches

Answer:

### Eureka Math Grade 2 Module 7 Lesson 15 Homework Answer Key

Measure the length of each household object with your ruler, and then use your ruler to draw a line equal to the length of each object in the space provided.

Question 1.

a. A dinner fork is _____ inches.

Answer:

A dinner fork is __**7**___ inches.

b. Draw a line that is the same length as the fork.

Answer:

Question 2.

a. A tablespoon is ______ inches.

Answer:

A tablespoon is **__8____** inches.

b. Draw a line that is the same length as the tablespoon.

Answer:

Measure two other household objects.

Question 3.

a. ______ is ______ inches.

Answer:

A **Tea Glass** is **3** inches.

b. Draw a line that is the same length as the ________.

Answer:

Question 4.

a. _________ is ______ inches.

Answer:

The **Curry Spoon** is **10** inches.

b. Draw a line that is the same length as the_________.

Answer:

Question 5.

a. What was the longest object you measured?

Answer:

The longest object i measured is **Curry Spoon.**

b. What was the shortest object you measured?

Answer:

The shortest object i measured is the** Tea Glass.**

c. The difference between the longest object and the shortest object is _______ inches.

Answer:

The difference between the shortest and longest object is**10 inches – 3 inches = 7 inches.**

Question 6.

Measure and label the length of each side of each shape in inches using your ruler.

a. The longer side of the rectangle is _______ inches.

Answer:

The longer side of the rectangle is **__4_____** inches.

b. The shorter side of the rectangle is _______ inches.

Answer:

The shorter side of the rectangle is __**2**_____ inches.

c. The longer side of the rectangle is _______ inches longer than the shorter side of the rectangle.

Answer:

The longer side of the rectangle is **__4 – 2 = 2_**inches longer than the shorter side of the rectangle

d. The shortest side of the trapezoid is _______ inches.

Answer:

The shortest side of the trapezoid is __**1**_____ inches.

e. The longest side of the trapezoid is _______ inches.

Answer:

The longest side of the trapezoid is __**3_**____ inches.

f. The longest side of the trapezoid is _______ inches longer than the shortest side.

Answer:

The longest side of the trapezoid is __**3 – 1 = 2**_____ inches longer than the shortest side.

g. Each side of the hexagon is _______ inches.

Answer:

Each side of the hexagon is **__1_____** inches.

h. The total length around the hexagon is _______ inches.

Answer:

The total length around the hexagon is __**6**_____ inches.

1 + 1 + 1 +1 + 1 +1 = 6 inches

6 sides .