## Engage NY Eureka Math 2nd Grade Module 1 Lesson 7 Answer Key

### Eureka Math Grade 2 Module 1 Lesson 7 Problem Set Answer Key

Question 1.

Solve

a.

Answer:

10 – 9 = 1,

1 + 1 = 2,

So 11 – 9 = 2,

Explanation:

Solved 10 – 9 as substracting 9 from 10

we will get 1 and adding 1 to 1 we will get 2,

therefore 11 – 9 = 2.

b. 12 – 9 = _3___

Answer:

10 – 9 = 1,

2 + 1 = 3,

So 12 – 9 = 3,

Explanation:

Solved 10 – 9 as substracting 9 from 10

we will get 1 and adding 2 to 1 we will get 3,

therefore 12 – 9 = 3.

c. 13 – 9 = __4__

Answer:

10 – 9 = 1,

3 + 1 = 4,

So 13 – 9 = 4,

Explanation:

Solved 10 – 9 as substracting 9 from 10

we will get 1 and adding 3 to 1 we will get 4,

therefore 13 – 9 = 4.

d. 11 – 8 = _3___

Answer:

10 – 8 = 2,

1 + 2 = 3,

So 11 – 8 = 3,

Explanation:

Solved 10 – 8 as substracting 8 from 10

we will get 2 and adding 2 to 1 we will get 3,

therefore 11 – 8 = 3.

e. 12 – 8 = __4__

Answer:

10 – 8 = 2,

2 + 2 = 4,

So 12 – 8 = 4,

Explanation:

Solved 10 – 8 as substracting 8 from 10

we will get 2 and adding 2 to 2 we will get 4,

therefore 12 – 8 = 4.

f. 13 – 8 = _5_

Answer:

10 – 8 = 2,

3 + 2 = 5,

So 13 – 8 = 5,

Explanation:

Solved 10 – 8 as substracting 8 from 10

we will get 2 and adding 2 to 3 we will get 5,

therefore 13 – 8 = 5.

g. 11 – 7 = __4__

Answer:

10 – 7 = 3,

1 + 3 = 4,

So 11 – 7 = 4,

Explanation:

Solved 10 – 7 as substracting 7 from 10

we will get 3 and adding 3 to 1 we will get 4,

therefore 11 – 7 = 4.

h. 12 – 7 = __5__

Answer:

10 – 7 = 3,

2 + 3 = 5,

So 12 – 7 = 5,

Explanation:

Solved 10 – 7 as substracting 7 from 10

we will get 3 and adding 3 to 2 we will get 5,

therefore 12 – 7 = 5.

i. 13 – 7 = __6__

Answer:

10 – 7 = 3,

3 + 3 = 6,

So 13 – 7 = 6,

Explanation:

Solved 10 – 7 as substracting 7 from 10

we will get 3 and adding 3 to 3 we will get 6,

therefore 13 – 7 = 6.

Question 2.

Solve

a. 14 – 6 = __8__

Answer:

10 – 6 = 4,

4 + 4 = 8,

So 14 – 6 = 8,

Explanation:

Solved 10 – 6 as substracting 6 from 10

we will get 4 and adding 4 to 4 we will get 8,

therefore 14 – 6 = 8.

b. 11 – 5 = __6__

Answer:

10 – 5 = 5,

1 + 5 = 6,

So 11 – 5 = 6,

Explanation:

Solved 10 – 5 as substracting 5 from 10

we will get 5 and adding 5 to 1 we will get 6,

therefore 11 – 5 = 6.

c. 16 – 7 = __9__

Answer:

10 – 7 = 3,

6 + 3 = 9,

So 16 – 7 = 9,

Explanation:

Solved 10 – 7 as substracting 7 from 10

we will get 3 and adding 3 to 6 we will get 9,

therefore 16 – 7 = 9.

Solve.

Question 3.

Shane has 12 pencils. He gives some pencils to his friends.

Now, he has 7 left. How many pencils did he give away?

_______5_______

Answer:

Shane gave away 5 pencils,

Explanation:

Shane has 12 pencils. He gives some pencils to his friends.

Now, he has 7 left. Number of pencils did he gave away are

12 – 7 = 5 pencils.

Question 4.

Victoria gave 6 celery sticks to her mom. She started with 13.

How many celery sticks does she have left?

______________7_____________

Answer:

Victoria is left with 7 celery sticks,

Explanation:

Given Victoria gave 6 celery sticks to her mom.

She started with 13. Number of celery sticks does

she have left are 13 – 6 = 7.

### Eureka Math Grade 2 Module 1 Lesson 7 Exit Ticket Answer Key

Solve.

Question 1.

15 – 7 = __8___

Answer:

10 – 7 = 3,

5 + 3 = 8,

So 15 – 7 =8,

Explanation:

Solved 10 – 7 as substracting 7 from 10

we will get 3 and adding 5 to 3 we will get 8,

therefore 12 – 8 = 4.

Question 2.

14 – 6 = __8___

Answer:

10 – 6 = 4,

4 + 4 = 8,

So 14 – 6 = 8,

Explanation:

Solved 10 – 6 as substracting 6 from 10

we will get 4 and adding 4 to 4 we will get 8,

therefore 14 – 6 = 8.

### Eureka Math Grade 2 Module 1 Lesson 7 Homework Answer Key

Question 1.

Take out ten.

Answer:

17 – 10 = 7,

14 -10 = 4,

18 – 10 = 8,

13 -10 = 3,

16 – 10 = 6,

19 – 10 = 9,

Explanation:

Given to take out ten from 17,

So 17 – 10 = 7, so 17 = 7 +10,

taking 10 from 14 we get 4, as

14 = 4 + 10, taking 10 from 18 we get

8, as 18 = 8 + 10, taking 10 from 13

we get 3, as 3 + 10 = 13, taking 10

from 16 we get 6, as 16 = 6 + 10 and taking 10

from 19 we get 9 as 19 = 9 +10 as shown above.

Question 2.

Solve.

10 – 2 = ____8_______

10 – 7 = _____3______

10 – 6 = ______4_____

10 – 5 = _____5______

10 – 8 = ______2_____

10 – 9 = ______1_____

Answer:

10 – 2 = 8,

10 – 7 = 3,

10 – 6 = 4,

10 – 5 = 5,

10 – 8 = 2,

10 – 9 = 1,

Explanation:

Solved by substracting 2 from 10 we will get 8,

7 from 10 we will get 3,

6 from 10 we will get 4,

5 from 10 we will get 5,

8 from 10 we will get 2 and

9 from 10 we will get 1.

Question 3.

Solve

a.

10 – 9 = 1

1 + 4 = __5__

Answer:

10 – 9 = 1,

10 + 1 = 11,

So 20 – 9 = 11,

Explanation:

Solved 10 – 9 as substracting 9 from 10

we will get 1 and adding 1 to 10 we will get 11,

therefore 20 – 9 = 11.

b. 15 – 8 = ___7__

Answer:

10 – 8 = 2,

5 + 2 = 7,

So 15 – 8 = 7,

Explanation:

Solved 10 -8 as substracting 8 from 10

we will get 2 and adding 5 to 2 we will get 7,

therefore 20 – 9 = 11.

c. 13 – 7 = __6___

Answer:

10 – 7 = 3,

3 + 3 = 6,

So 13 – 7 = 6,

Explanation:

Solved 10 – 7 as substracting 7 from 10

we will get 3 and adding 3 to 3 we will get 6,

therefore 13 – 7 = 6.

d. 12 – 8 = __4___

Answer:

10 – 8 = 1,

2 + 2 = 4,

So 12 – 8 = 4,

Explanation:

Solved 10 – 8 as substracting 8 from 10

we will get 2 and adding 2 to 2 we will get 4,

therefore 12 – 8 = 4.

Solve.

Question 4.

Robert has 16 cups. Some are red. Nine are blue.

How many cups are red?

___7__ cups are red.

Answer:

7 cups are red,

Explanation:

Given Robert has 16 cups and some are red, nine are blue,

So number of cups red are 16 – 9 = 7.

Question 5.

Lucy spent $8 on a game. She started with $14.

How much money does Lucy have left?

___________$6_____________

Answer:

Lucy is left with $6,

Explanation:

Given Lucy spent $8 on a game,She started with $14.

Money does Lucy have left with is $14 – $8 = $6.