## Engage NY Eureka Math 3rd Grade Module 1 Lesson 18 Answer Key

Eureka Math Grade 3 Module 1 Answer Key

### Eureka Math Grade 3 Module 1 Lesson 18 Sprint Answer Key

A

Add or Subtract Using 5

Question 1.

0 + 5 =

0 + 5 = 5,

Explanation:

Given 0 + 5 = adding 5 to 0 we get 5,

So, 0 + 5 = 5.

Question 2.

5 + 5 =

5 + 5 = 10,

Explanation:

Given 5 + 5 = adding 5 to 5 we get 10,

So, 5 + 5 = 10.

Question 3.

10 + 5 =

10 + 5 = 15,

Explanation:

Given 10 + 5 = adding 5 to 10 we get 15,

So, 10 + 5 = 15.

Question 4.

15 + 5 =

15 + 5 = 20,

Explanation:

Given 15 + 5 = adding 5 to 15 we get 20,

So, 15 + 5 = 20.

Question 5.

20 + 5 =

20 + 5 =25,

Explanation:

Given 20 + 5 = adding 5 to 20 we get 25,

So, 20 + 5 = 5.

Question 6.

25 + 5 =

25 + 5 = 30,

Explanation:

Given 25 + 5 = adding 5 to 25 we get 30,

So, 25 + 5 = 30.

Question 7.

30 + 5 =

30 + 5 = 35,

Explanation:

Given 30 + 5 = adding 5 to 30 we get 35,

So, 30 + 5 = 35.

Question 8.

35 + 5 =

35 + 5 = 40,

Explanation:

Given 35 + 5 = adding 5 to 35 we get 40,

So, 35 + 5 = 40.

Question 9.

40 + 5 =

40 + 5 = 45,

Explanation:

Given 40 + 5 = adding 5 to 40 we get 45,

So, 40 + 5 = 45.

Question 10.

45 + 5 =

45 + 5 = 50,

Explanation:

Given 45 + 5 = adding 5 to 45 we get 50,

So, 45 + 5 = 50.

Question 11.

50 – 5 =

50 – 5 = 45,

Explanation:

Given 50 – 5 = subtracting 5 from 50 we get 45,

So, 50 – 5 = 45.

Question 12.

45 – 5 =

45 – 5 = 40,

Explanation:

Given 45 – 5 = subtracting 5 from 45 we get 40,

So, 45 – 5 = 40.

Question 13.

40 – 5 =

40 – 5 = 35,

Explanation:

Given 40 – 5 = subtracting 5 from 40 we get 35,

So, 40 – 5 = 35.

Question 14.

35 – 5 =

35 – 5 = 30,

Explanation:

Given 35 – 5 = subtracting 5 from 35 we get 30,

So, 35 – 5 = 30.

Question 15.

30 – 5 =

30 – 5 = 25,

Explanation:

Given 30 – 5 = subtracting 5 from 30 we get 25,

So, 30 – 5 = 25.

que25 16.

25 – 5 =

25 – 5 = 20,

Explanation:

Given 25 – 5 = subtracting 5 from 25 we get 20,

So, 25 – 5 = 20.

Question 17.

20 – 5 =

20 – 5 = 15,

Explanation:

Given 20 – 5 = subtracting 5 from 20 we get 15,

So, 20 – 5 = 15.

Question 18.

15 – 5 =

15 – 5 = 10,

Explanation:

Given 15 – 5 = subtracting 5 from 15 we get 10,

So, 15 – 5 = 10.

Question 19.

10 – 5 =

10 – 5 = 5,

Explanation:

Given 10 – 5 = subtracting 5 from 10 we get 5,

So, 10 – 5 = 5.

Question 20.

5 – 5 =

5 – 5 = 0,

Explanation:

Given 5 – 5 = subtracting 5 from 5 we get 0,

So, 5 – 5 = 0.

Question 21.

5 + 0 =

5 + 0 = 5,

Explanation:

Given 5 + 0 = adding 5 to 0 we get 5,

So, 5 + 0 = 5.

Question 22.

5 + 5 =

5 + 5 = 10,

Explanation:

Given 5 + 5 = adding 5 to 5 we get 10,

So, 5 + 5 = 10.

Question 23.

10 + 5 =

10 + 5 = 15,

Explanation:

Given 10 + 5 = adding 5 to 10 we get 15,

So, 10 + 5 = 15.

Question 24.

15 + 5 =

15 + 5 = 20,

Explanation:

Given 15 + 5 = adding 5 to 15 we get 20,

So, 15 + 5 = 20.

Question 25.

20 + 5 =

20 + 5 = 25,

Explanation:

Given 20 + 5 = adding 5 to 20 we get 25,

So, 20 + 5 = 25.

Question 26.

25 + 5 =

25 + 5 = 30,

Explanation:

Given 25 + 5 = adding 5 to 25 we get 30,

So, 25 + 5 = 30.

Question 27.

30 + 5 =

30 + 5 = 35,

Explanation:

Given 30 + 5 = adding 5 to 30 we get 35,

So, 30 + 5 = 35.

Question 28.

35 + 5 =

35 + 5 = 40,

Explanation:

Given 35 + 5 = adding 5 to 35 we get 40,

So, 35 + 5 = 40.

Question 29.

40 + 5 =

40 + 5 = 45,

Explanation:

Given 40 + 5 = adding 5 to 40 we get 45,

So, 40 + 5 = 45.

Question 30.

45 + 5 =

45 + 5 = 50,

Explanation:

Given 45 + 5 = adding 5 to 45 we get 50,

So, 45 + 5 = 50.

Question 31.

0 + 50 =

0 + 50 = 50,

Explanation:

Given 0 + 50 = adding 0 to 50 we get 50,

So, 0 + 50 = 50.

Question 32.

50 + 50 =

50 + 50 = 100,

Explanation:

Given 50 + 50 = adding 50 to 50 we get 100,

So, 50 + 50 = 100.

Question 33.

50 + 5 =

50 + 5 = 55,

Explanation:

Given 50 + 5 = adding 5 to 50 we get 55,

So, 50 + 5 = 55.

Question 34.

55 + 5 =

55 + 5 = 60,

Explanation:

Given 55 + 5 = adding 5 to 55 we get 60,

So, 55 + 5 = 55.

Question 35.

60 – 5 =

0 + 50 = 50,

Explanation:

Given 0 + 50 = adding 0 to 50 we get 50,

So, 0 + 50 = 50.

Question 36.

55 – 5 =

55 – 5 = 50,

Explanation:

Given 55 – 5 = subtracting 5 from 55 we get 50,

So, 55 – 5 = 50.

Question 37.

60 + 5 =

60 + 5 = 65,

Explanation:

Given 60 + 5 = adding 5 to 60 we get 65,

So, 60 + 5 = 15.

Question 38.

65 + 5 =

65 + 5 = 70,

Explanation:

Given 65 + 5 = adding 5 to 65 we get 70,

So, 65 + 5 = 70.

Question 39.

70 – 5 =

70 – 5 = 65,

Explanation:

Given 70 – 5 = subtracting 5 from 70 we get 65,

So, 70 – 5 = 65.

Question 40.

65 – 5 =

65 – 5 = 60,

Explanation:

Given 65 – 5 = subtracting 5 from 65 we get 60,

So, 65 – 5 = 60.

Question 41.

100 + 50 =

100 + 50 = 150,

Explanation:

Given 100 + 50 = adding 50 to 100 we get 150,

So, 100 + 50 = 150.

Question 42.

150 + 50 =

150 + 50 = 200,

Explanation:

Given 150 + 50 = adding 50 to 150 we get 200,

So, 150 + 50 = 200.

Question 43.

200 – 50 =

200 – 50 = 150,

Explanation:

Given 200 – 50 = subtracting 50 from 200 we get 150,

So, 200 – 50 = 150.

Question 44.

150 – 50 =

150 – 50 = 100,

Explanation:

Given 150 – 50 = subtracting 50 from 150 we get 100,

So, 150 – 50 = 100.

B

Add or Subtract Using 5

Question 1.

5 + 0 =

5 + 0 = 5,

Explanation:

Given 5 + 0 = adding 5 to 0 we get 5,

So, 5 + 0 = 5.

Question 2.

5 + 5 =

5 + 5 = 10,

Explanation:

Given 5 + 5 = adding 5 to 5 we get 10,

So, 5 + 5 = 10.

Question 3.

5 + 10 =

5 + 10 = 15,

Explanation:

Given 5 + 10 = adding 5 to 10 we get 15,

So, 5 + 10 = 15.

Question 4.

5 + 15 =

5 + 15 = 20,

Explanation:

Given 5 + 15 = adding 5 to 15 we get 20,

So, 5 + 15 = 20.

Question 5.

5 + 20 =

5 + 20 = 25,

Explanation:

Given 5 + 20 = adding 5 to 20 we get 25,

So, 5 + 20 = 25.

Question 6.

5 + 25 =

5 + 25 = 30,

Explanation:

Given 5 + 25 = adding 5 to 25 we get 30,

So, 5 + 25 = 30.

Question 7.

5 + 30 =

5 + 30 = 35,

Explanation:

Given 5 + 30 = adding 5 to 30 we get 35,

So, 5 + 30 = 35.

Question 8.

5 + 35 =

5 + 35 = 40,

Explanation:

Given 5 + 35 = adding 5 to 35 we get 40,

So, 5 + 35 = 40.

Question 9.

5 + 40 =

5 + 40 = 45,

Explanation:

Given 5 + 40 = adding 5 to 40 we get 45,

So, 5 + 40 = 45.

Question 10.

5 + 45 =

5 + 45 = 50,

Explanation:

Given 5 + 45 = adding 5 to 45 we get 50,

So, 5 + 45 = 50.

Question 11.

50 – 5 =

50 – 5 = 45,

Explanation:

Given 50 – 5 = subtracting 5 from 50 we get 45,

So, 50 – 5 = 45.

Question 12.

45 – 5 =

45 – 5 = 40,

Explanation:

Given 45 – 5 = subtracting 5 from 45 we get 40,

So, 45 – 5 = 40.

Question 13.

40 – 5 =

40 – 5 = 35,

Explanation:

Given 40 – 5 = subtracting 5 from 40 we get 35,

So, 40 – 5 = 35.

Question 14.

35 – 5 =

35 – 5 = 30,

Explanation:

Given 35 – 5 = subtracting 5 from 35 we get 30,

So, 35 – 5 = 30.

Question 15.

30 – 5 =

30 – 5 = 25,

Explanation:

Given 30 – 5 = subtracting 5 from 30 we get 25,

So, 30 – 5 = 25.

Question 16.

25 – 5 =

25 – 5 = 20,

Explanation:

Given 25 – 5 = subtracting 5 from 25 we get 20,

So, 25 – 5 = 20.

Question 17.

20 – 5 =

20 – 5 = 15,

Explanation:

Given 20 – 5 = subtracting 5 from 20 we get 15,

So, 20 – 5 = 15.

Question 18.

15 – 5 =

15 – 5 = 10,

Explanation:

Given 15 – 5 = subtracting 5 from 15 we get 10,

So, 15 – 5 = 10.

Question 19.

10 – 5 =

10 – 5 = 5,

Explanation:

Given 10 – 5 = subtracting 5 from 10 we get 5,

So, 10 – 5 = 5.

Question 20.

5 – 5 =

5 – 5 = 0,

Explanation:

Given 5 – 5 = subtracting 5 from 5 we get 0,

So, 5 – 5 = 0.

Question 21.

0 + 5 =

0 + 5 = 5,

Explanation:

Given 0 + 5 = adding 5 to 0 we get 5,

So, 0 + 5 = 5.

Question 22.

5 + 5 =

5 + 5 = 10,

Explanation:

Given 5 + 5 = adding 5 to 5 we get 10,

So, 5 + 5 = 10.

Question 23.

10 + 5 =

10 + 5 = 15,

Explanation:

Given 10 + 5 = adding 5 to 10 we get 15,

So, 10 + 5 = 15.

Question 24.

15 + 5 =

15 + 5 = 20,

Explanation:

Given 15 + 5 = adding 5 to 15 we get 20,

So, 15 + 5 = 20.

Question 25.

20 + 5 =

20 + 5 = 25,

Explanation:

Given 20 + 5 = adding 5 to 20 we get 25,

So, 20 + 5 = 25.

Question 26.

25 + 5 =

25 + 5 = 30,

Explanation:

Given 25 + 5 = adding 5 to 25 we get 30,

So, 25 + 5 = 30.

Question 27.

30 + 5 =

30 + 5 = 35,

Explanation:

Given 30 + 5 = adding 5 to 30 we get 35,

So, 30 + 5 = 35.

Question 28.

35 + 5 =

35 + 5 = 40,

Explanation:

Given 35 + 5 = adding 5 to 35 we get 40,

So, 35 + 5 = 40.

Question 29.

40 + 5 =

40 + 5 = 45,

Explanation:

Given 40 + 5 = adding 5 to 40 we get 45,

So, 40 + 5 = 45.

Question 30.

45 + 5 =

45 + 5 = 50,

Explanation:

Given 45 + 5 = adding 5 to 45 we get 50,

So, 45 + 5 = 50.

Question 31.

50 + 0 =

50 + 0 = 50,

Explanation:

Given 50 + 5 = adding 0 to 50 we get 50,

So, 50 + 0 = 50.

Question 32.

50 + 50 =

50 + 50 = 100,

Explanation:

Given 50 + 50 = adding 50 to 50 we get 100,

So, 50 + 50 = 100.

Question 33.

5 + 50 =

5 + 50 = 55,

Explanation:

Given 5 + 50 = adding 5 to 50 we get 55,

So, 5 + 50 = 55.

Question 34.

5 + 55 =

5 + 55 = 60,

Explanation:

Given 5 + 55 = adding 5 to 55 we get 60,

So, 5 + 55 = 60.

Question 35.

60 – 5 =

60 – 5 = 55,

Explanation:

Given 60 – 5 = subtracting 5 from 60 we get 55,

So, 60 – 5 = 55.

Question 36.

55 – 5 =

55 – 5 = 50,

Explanation:

Given 55 – 5 = subtracting 5 from 55 we get 50,

So, 55 – 5 = 50.

Question 37.

5 + 60 =

5 + 60 = 65,

Explanation:

Given 5 + 60 = adding 5 to 60 we get 65,

So, 5 + 60 = 65.

Question 38.

5 + 65 =

5 + 65 = 70,

Explanation:

Given 5 + 65 = adding 5 to 65 we get 70,

So, 5 + 65 = 70.

Question 39.

70 – 5 =

70 – 5 = 65,

Explanation:

Given 70 – 5 = subtracting 5 from 70 we get 65,

So, 65 – 5 = 60.

Question 40.

65 – 5 =

65 – 5 = 60,

Explanation:

Given 65 – 5 = subtracting 5 from 65 we get 60,

So, 65 – 5 = 60.

Question 41.

50 + 100 =

50 + 100 = 150,

Explanation:

Given 50 + 100 = adding 50 to 100 we get 150,

So, 50 + 100 = 150.

Question 42.

50 + 150 =

50 + 150 = 200,

Explanation:

Given 50 + 150 = adding 50 to 150 we get 200,

So, 50 + 150 = 200.

Question 43.

200 – 50 =

200 – 50 = 150,

Explanation:

Given 200 – 50 = subtracting 50 from 200 we get 150,

So, 200 – 50 = 150.

Question 44.

150 – 50 =

150 – 50 = 100,

Explanation:

Given 150 – 50 = subtracting 50 from 150 we get 100,

So, 150 – 50 = 100.

### Eureka Math Grade 3 Module 1 Lesson 18 Problem Set Answer Key

Question 1.

8 × 10 = __80____

5 tens + ______3 tens_________ = 8 tens

(5 × 10) + (___3___ × 10) = 8 × 10

50 + ___30______ = ___80______

8 × 10 = ____80________

8 × 10 = 80

5 tens + 3 tens = 8 tens

(5 × 10) + (3 × 10) = 8 × 10

50 + 30 = 80

8 × 10 = 80

Explanation:

Given 8 X 10 =

We can write 8 X 10 as 5 tens + 3 tens,

(5 X 10) + (3 X 10) = 8 X 10,

50 + 30 = 80 or 8 X 10 = 80.

Question 2.

7 × 4 = ___28___

5 fours + ______2 fours____ = 7 fours

(5 × 4) + (___2___ × 4) = 7 × 4

20 + ____8_____ = ____28_____

7 × 4 = _____28_______

7 x 4 = 28,

5 fours + 2 fours = 7 fours

(5 × 4) + (2 × 4) = 7 × 4

20 + 8 = 28

7 × 4 = 28,

Explanation:

Given 7 X 4 =

We can write 7 x 4 as 5 fours + 2 fours,

(5 X 4) + (2 X 4) = 7 X 4,

20 + 8 = 28 or 7 X 4 = 28.

Question 3.

9 × 10 = ___90___

5 tens + _____4 tens__________ = 9 tens

(5 × 10) + (___4___ × 10) = 9 × 10

___50______ + ___40______ = ___ 90______

9 × 10 = _____90_______

9 X 10 = 90,

5 tens + 4 tens = 9 tens

(5 × 10) + (4 × 10) = 9 × 10

50 + 40 = 90

9 × 10 = 90

Explanation:

Given 9 X 10 =

We can write 9 X 10 as 5 tens + 4 tens,

(5 X 10) + (4 X 10) = 9 X 10,

50 + 40 = 90 or 9 X 10 = 90.

Question 4.

10 × 10 = __100____

____5 tens_________ + ___5 tens_________ = 10 tens

(___5___ × 10) + (__5____ × 10) = 10 × 10

___50_____ + ___50______ = ___100______

10 × 10 = ____100________

10 X 10 = 100

5 tens + 5 tens = 10 tens

(5 × 10) + (5 × 10) = 10 × 10

50 + 50 = 100

10 × 10 = 100

Explanation:

Given 10 X 10 =

We can write 10 X 10 as 5 tens + 5 tens,

(5 X 10) + (5 X 10) = 10 X 10,

50 + 50 = 100 or 10 X 10 = 100.

Question 5.

There are 7 teams in the soccer tournament.

Ten children play on each team. How many children are

playing in the tournament? Use the break apart and

distribute strategy, and draw a number bond to solve.

There are ____70______ children playing in the tournament.

There are 70 children playing in the tournament,

7 X 10 =

5 tens + 2 tens = 7 tens

(5 × 10) + (2 × 10) = 7 × 10

50 + 20 = 70

7 × 10 = 70

Explanation:

Given there are 7 teams in the soccer tournament.

Ten children play on each team. So number of children

playing in the tournament are 7 X 10 = 70,

Used the break apart and distribute strategy,

drawn a number bond to solve 7 X 10 =

wrote 7 as 5 tens + 2 tens = 7 tens,

(5 × 10) + (2 × 10) = 7 × 10,

50 + 20 = 70,

7 × 10 = 70,

Therefore, there are 70 children playing in the tournament.

Question 6.

What is the total number of sides on 8 triangles?

Total number of 24 sides on 8 triangles,

Explanation:

Given to find the total number of sides on 8 triangles,

as we know a triangle has 3 sides so 8 triangles means

3 sides X 8 = 24 sides,

therefore, total number of 24 sides on 8 triangles.

Question 7.

There are 12 rows of bottled drinks in the vending machine.

Each row has 10 bottles. How many bottles are in the vending machine?

There are 120 bottles in total in the vending machine,

Explanation:

Given there are 12 rows of bottled drinks in the vending machine

and each row has 10 bottles, So total number of bottles in

the vending machine are 12 X 10 = 120 bottles.

### Eureka Math Grade 3 Module 1 Lesson 18 Exit Ticket Answer Key

Dylan used the break apart and distribute strategy to

solve a multiplication problem. Look at his work below,

write the multiplication problem Dylan solved,

and complete the number bond.

Explanation:

Given Dylan used the break apart and distribute strategy to

solve a multiplication problem. Looking at his work,

wrote the multiplication problem Dylan solved,

and completed the number bond as shown above,

as 6 X 4 = (5 X 4) + (1 X 4) = 20 + 4 =24, or 6 X 4 = 24.

### Eureka Math Grade 3 Module 1 Lesson 18 Homework Answer Key

Question 1.

Match.

Matched as shown below :

Explanation:

Matched expressions as

7 tens = 5 tens + 2 tens = (5 X 10) + (2 X 10) = 70,

8 fours = 5 fours + 3 fours = (5 X 4) + (3 X 4) = 32,

9 tens = 6 tens + 3 tens = (6 X 10) + (3 X 10) = 90,

7 threes = 5 threes + 2 threes = (5 X 3) + (2 X 3) = 21.

Question 2.

9 × 4 = ___36___

(_5_ × 4) + (_4_ × 4) = 9 × 4

_20__ + _16_ = _36_

9 × 4 = _36_.

9 X 4 = 36,

(5 X 4 + 4 X 4) = 9 X 4,

20 + 16 = 36,

9 X 4 = 36,

Explanation:

Given 9 X 4 =

We can write 9 X 4 as 5 fours + 4 fours,

(5 X 4) + (4 X 4) = 9 X 4,

20 + 16 = 36 or 9 X 4 = 36.

Question 3.

Lydia makes 10 pancakes. She tops each pancake with

4 blueberries. How many blueberries does Lydia use in all?

Use the break apart and distribute strategy, and

draw a number bond to solve.

Lydia uses __40__ blueberries in all.

Lydia uses 40 blueberries in all,

Explanation:

Given Lydia makes 10 pancakes. She tops each pancake with

4 blueberries. So number of blueberries Lydia use in all are

4 X 10 = 40, Used the break apart and distribute strategy as

(2 X 10) + (2 X 10) = 20 + 20 = 40 and drawn a

number bond to solve 4 x 10 as 40.

Question 4.

Steven solves 7 × 3 using the break apart and distribute strategy.

Show an example of what Steven’s work might look like below.

7 X 3 = 21,

Example: Steven has 7 friends and each friend has

3 balloons, how many total balloons Steven will collect

from his friends?

Explanation:

Given Steven has 7 friends and each friend has

3 balloons, how many total balloons Steven will collect

from his friends?

Steven solves 7 × 3 using the

break apart and distribute strategy shown above as

7 X 3 = (4 X 3) + (3 X 3) = 12 + 9 = 21,

or 7 X 3 = 21.

So Steven collects 21 balloons in all.

Question 5.

There are 7 days in 1 week. How many days are there in 10 weeks?

There are 70 days in 10 weeks,

Explanation:

Given there are 7 days in 1 week. So number of days

in 10 weeks are 7 X 10 = 70 days.

therefore there are 70 days in 10 weeks.