## 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 =
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 =
2 + 2 = 4

Question 3.
4 + 2 =
4 + 2 = 6

Question 4.
6 + 2 =
6 + 2 = 8

Question 5.
8 + 2 =
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 =
10 + 2 = 12

Question 7.
12 + 2 =
12 + 2 = 14

Question 8.
14 + 2 =
14 + 2 = 16

Question 9.
16 + 2 =
16 +2 = 18

Question 10.
18 + 2 =
18 + 2 = 20

Question 11.
20 – 2 =
20 – 2 = 18

Question 12.
18 – 2 =
18 – 2 = 16

Question 13.
16 – 2 =
16 – 2 = 14

Question 14.
14 – 2 =
14 – 2 = 12

Question 15.
12 – 2 =
12 – 2 = 10

Question 16.
10 – 2 =
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 =
8 – 2 = 6

Question 18.
6 – 2 =
6 – 2 = 4

Question 19.
4 – 2 =

4 – 2 = 2

Question 20.
2 – 2 =
2 – 2 = 0

Question 21.
2 + 0 =
2 + 0 = 2

Question 22.
2 + 2 =
2 + 2 = 4

Question 23.
2 + 4 =
2 + 4 = 6

Question 24.
2 + 6 =
2 + 6 = 8

Question 25.
2 + 8 =
2 + 8 = 10

Question 26.
2 + 10 =
2 + 10 = 12

Question 27.
2 + 12 =
2 + 12 = 14

Question 28.
2 + 14 =
2 + 14 = 16

Question 29.
2 + 16 =
2 + 1 6 = 18

Question 30.
2 + 18 =
2 + 1 8 = 20

Question 31.
0 + 22 =
0 + 22 = 22

Question 32.
22 + 22 =
22 + 22 = 44

Question 33.
44 + 22 =
44 + 22 = 66

Question 34.
66 + 22 =
66 + 22 = 88

Question 35.
88 – 22 =
88 – 22 = 66

Question 36.
66 – 22 =
66 – 22 = 44

Question 37.
44 – 22 =
44 – 22 = 22

Question 38.
22 – 22 =
22 -22 = 0
Explanation:
Subtracting any number by itself gives the difference zero.0

Question 39.
22 + 0 =
22 + 0 = 22
Explanation:
Adding Zero to any number gives the sum the number itself.

Question 40.
22 + 22 =
22 + 22 = 44

Question 41.
22 + 44 =
22 + 44 = 66

Question 42.
66 + 22 =
66 + 22 = 88

Question 43.
888 – 222 =
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 =
666 – 222 = 444

B. Adding and Subtracting by 2 Question 1.
2 + 0 =
2 + 0 = 2

Question 2.
2 + 2 =
2 + 2 = 4

Question 3.
2 + 4 =
2 + 4 = 6

Question 4.
2 + 6 =
2 + 6 = 8

Question 5.
2 + 8 =
2 + 8 = 10

Question 6.
2 + 10 =
2 + 10 = 12

Question 7.
2 + 12 =
2 + 12= 14

Question 8.
2 + 14 =
2 + 14 = 16

Question 9.
2 + 16 =
2 + 16 = 18

Question 10.
2 + 18 =
2 + 18 = 20

Question 11.
20 – 2 =
20 – 2 = 18

Question 12.
18 – 2 =
18 – 2 = 16

Question 13.
16 – 2 =
16 – 2 = 14

Question 14.
14 – 2 =
14 – 2 = 12

Question 15.
12 – 2 =
12 – 2 = 10

Question 16.
10 – 2 =
10 – 2 = 8

Question 17.
8 – 2 =
8 – 2 = 6

Question 18.
6 – 2 =
6 – 2 = 4

Question 19.
4 – 2 =
4 – 2 = 2

Question 20.
2 – 2 =
2 – 2 = 0

Question 21.
0 + 2 =
0 + 2 = 2

Question 22.
2 + 2 =
2 + 2 = 4

Question 23.
4 + 2 =
4 + 2 = 6

Question 24.
6 + 2 =
6 + 2 = 8

Question 25.
8 + 2 =
8 + 2 = 10

Question 26.
10 + 2 =
10 + 2 = 12

Question 27.
12 + 2 =
12 + 2 = 14

Question 28.
14 + 2 =
14 + 2 = 16

Question 29.
16 + 2 =
16 + 2 = 18

Question 30.
18 + 2 =
18 + 2 = 20

Question 31.
0 + 22 =
0 + 22 = 22

Question 32.
22 + 22 =
22 +22 = 44

Question 33.
22 + 44 =
22 +44 = 66

Question 34.
66 + 22 =
66 + 22 = 88

Question 35.
88 – 22 =
88 – 22 = 66

Question 36.
66 – 22 =
66 – 22 = 44

Question 37.
44 – 22 =
44 – 22 = 22

Question 38.
22 – 22 =
22 -22 = 0

Question 39.
22 + 0 =
22 + 0 = 22

Question 40.
22 + 22 =
22 +22 = 44

Question 41.
22 + 44 =
22 + 44 = 66

Question 42.
66 + 22 =
66 + 22 = 88

Question 43.
666 – 222 =
666 – 222 = 444

Question 44.
888 – 222 =
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.
A pencil is _7_ inches.

b. Draw a line that is the same length as the pencil. Question 2.
a. An eraser is ______ inches.
An eraser is _3__ inches.

b. Draw a line that is the same length as the eraser. Question 3.
a. A crayon is ______ inches.
A crayon is __4____ inches.

b. Draw a line that is the same length as the crayon. Question 4.
a. A marker is _____ inches.
A marker is _6____ inches.

b. Draw a line that is the same length as the marker. Question 5.
a. What is the longest item that you measured?
The longest item that i measured is Pencil which is 7 inches.

b. How long is the longest item? ______ inches
The longest item is 7 inch long.

c. How long is the shortest item? _______ inches
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 e. Draw a line that is the same as the length you found in (d). 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
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
The length of Side A = 5 inches.

c. What is the length of Sides C and B together? _____ inches
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
The difference between the shortest and the longest side is
5 – 3 = 2 inches.

Question 7.
Solve.

a. ______ inches = 1 foot
1 foot equal to 12 inches.
_12__ inches = 1 foot

b. 5 inches + ______ inches = 1 foot
1 foot = 12 inches
12 inches – 5 inches = 7 inches
5 inches + _7__inches = 1 foot

c. ______ inches + 4 inches = 1 foot
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.  Question 2.
What is the sum of the length of Side B and the length of Side C? ______ inches ### 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.
A dinner fork is __7___ inches.

b. Draw a line that is the same length as the fork. Question 2.
a. A tablespoon is ______ inches.
A tablespoon is __8____ inches.

b. Draw a line that is the same length as the tablespoon. Measure two other household objects.

Question 3.
a. ______ is ______ inches.
A Tea Glass is 3 inches.

b. Draw a line that is the same length as the ________. Question 4.
a. _________ is ______ inches.
The Curry Spoon is 10 inches.

b. Draw a line that is the same length as the_________. Question 5.
a. What was the longest object you measured?
The longest object i measured is Curry Spoon.

b. What was the shortest object you measured?
The shortest object i measured is the Tea Glass.

c. The difference between the longest object and the shortest object is _______ inches.
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.
The longer side of the rectangle is __4_____ inches.

b. The shorter side of the rectangle is _______ inches.
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.
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.
The shortest side of the trapezoid is __1_____ inches.

e. The longest side of the trapezoid is _______ inches.
The longest side of the trapezoid is __3_____ inches.

f. The longest side of the trapezoid is _______ inches longer than the shortest side.
The longest side of the trapezoid is __3 – 1 = 2_____ inches longer than the shortest side. g. Each side of the hexagon is _______ inches. 