Engage NY Eureka Math 1st Grade Module 2 Lesson 19 Answer Key

Eureka Math Grade 1 Module 2 Lesson 19 Problem Set Answer Key

Use a number bond to show how you used the take from ten strategy to solve the problem.

Question 1.
Kevin had 14 crayons. Eight of the crayons were broken. How many of his crayons were not broken?
14 – 8 = __

Kevin had ___ crayons that were not broken.
14 – 8 = 6
Kevin had 6 crayons that were not broken.
Explanation:
Kevin had 14 crayons. Eight of the crayons were broken. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 14 â€“ 8 = 6. Break fourteen into two parts as ten and four. Subtract eight from ten then we got two. ADD two with four then we got six. Kevin had 6 crayons that were not broken.

Use number bonds to show your thinking.

Question 2.
17 – 8 = ____

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 17 â€“ 8 = 9. Break seventeen into two parts as ten and seven. Subtract eight from ten then we got two. ADD two with seven then we got nine.

Question 3.
18 – 8 = ____

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 18 â€“ 8 = 10. Break eighteen into two parts as ten and eight. Subtract eight from ten then we got two. ADD two with eight then we got ten.

Count on to solve.

Question 4.
13 – 8 = ____

Explanation:
Eight is close to thirteen then start at eight and count on. In the above image we can observe a number sentence 13 â€“ 8 = 5. Break thirteen into two parts as ten and three. Subtract eight from ten then we got two. ADD two with three then we got five.

Question 5.
15 – 8 = ____

Explanation:
Eight is close to fifteen then start at eight and count on. In the above image we can observe a number sentence 15 â€“ 8 = 7. Break fifteen into two parts as ten and five. Subtract eight from ten then we got two. ADD two with five then we got seven.

Complete the subtraction sentences by using the take from ten and count on strategies. Check the strategy that seemed easiest to you.

Question 6.
a.

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 12 â€“ 8 = 4. Break twelve into two parts as ten and two. Subtract eight from ten then we got two. ADD two with two then we got four.

b. 8 + ___ = 12

Explanation:
An addition sentence is a mathematical expression that shows two or more values added together. ADD two with two then we got four. In the above image we can observe 8 + 4 = 12. By adding eight with four we got twelve. The result is formed by count on strategy.

Question 7.
a.

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 11 â€“ 8 = 3. Break eleven into two parts as ten and one. Subtract eight from ten then we got two. ADD two with one then we got three.

b. 8 + ___ = 11

Explanation:
An addition sentence is a mathematical expression that shows two or more values added together. ADD two with one then we got three. In the above image we can observe 8 + 3 = 12. By adding eight with three we got eleven. The result is formed by count on strategy.

Question 8.
a.

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 16 â€“ 8 = 8. Break sixteen into two parts as ten and six. Subtract eight from ten then we got two. ADD two with six then we got eight.

b. 8 + ___ = 16

8 + 8 = 16Â  Â  Â

Explanation:
An addition sentence is a mathematical expression that shows two or more values added together. In the above image we can observe 8 + 8 = 16. By adding eight with eight we got sixteen.

Question 9.
a.

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 19 â€“ 8 = 11. Break nineteen into two parts as ten and nine. Subtract eight from ten then we got two. ADD two with nine then we got eleven.

b. 8 + ___ = 19

8 + 11 = 19Â  Â  Â  Â

Explanation:

An addition sentence is a mathematical expression that shows two or more values added together. In the above image we can observe 8 + 11 = 19. By adding eight with eleven we got nineteen.

Eureka Math Grade 1 Module 2 Lesson 19 Exit Ticket Answer Key

Complete the subtraction sentences by using the take from ten strategy and count on.

Question 1.
a.

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 11 â€“ 8 = 3. Break eleven into two parts as ten and one. Subtract eight from ten then we got two. ADD two with one then we got three.

b. 8 + ___ = 11
8 + 3 = 11

Explanation:
An addition sentence is a mathematical expression that shows two or more values added together. ADD two and one then we got three. In the above image we can observe 8 + 3 = 11. By adding eight with three we got eleven.

Question 2.
a.

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 15 â€“ 8 = 7. Break fifteen into two parts as ten and five. Subtract eight from ten then we got two. ADD two with five then we got seven.

b. 8 + ___ = 15
8 + 7 = 15

Explanation:
An addition sentence is a mathematical expression that shows two or more values added together.Â  ADD two and five then we got seven. In the above image we can observe 8 + 7 = 15. By adding eight with seven we got fifteen.

Complete the subtraction sentences by using the take from ten strategy and count on.

Question 1.

a.

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 12â€“ 8 = 4. Break twelve into two parts as ten and two. Subtract eight from ten then we got two. ADD two with two then we got four.

b. 8 + ___ = 12
8 + 4 = 12

Explanation:
An addition sentence is a mathematical expression that shows two or more values added together. ADD two and two then we got four. In the above image we can observe 8 + 4 = 12. By adding eight with four we got twelve.

Question 2.
a.

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 15 â€“ 8 = 7. Break fifteen into two parts as ten and five. Subtract eight from ten then we got two. ADD two with five then we got seven.

b. 8 + ___ = 15
8 + 7 = 15

Explanation:
An addition sentence is a mathematical expression that shows two or more values added together. ADD two and five then we got seven. In the above image we can observe 8 + 7 = 15. By adding eight with seven we got fifteen.

Choose the count on strategy or the take from ten strategy to solve.

Question 3.
11 – 8 = ___

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 11 â€“ 8 = 3. Break eleven into two parts as ten and one. Subtract eight from ten then we got two. ADD two with one then we got three.

Question 4.
17 – 8 = ___

Explanation:
A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 17 â€“ 8 = 9. Break seventeen into two parts as ten and seven. Subtract eight from ten then we got two. ADD two with seven then we got nine.

Use a number bond to show how you solved using the take from ten strategy.

Question 5.
Elise counted 16 worms on the pavement. Eight worms crawled into the dirt. How many worms did Elise still see on the pavement?
16 – 8 = __

Elise still saw __ worms on the pavement.
16 – 8 = 8
10 – 8 = 2
2 + 6 = 8
Elise still saw 8 worms on the pavement.
Explanation:
Elise counted 16 worms on the pavement. Eight worms crawled into the dirt. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 16 – 8 = 8. Break sixteen into two parts as ten and six. Subtract eight from ten then we got two. ADD two with six then we got eight. Elise still saw 8 worms on the pavement.

Question 6.
John ate 8 orange slices. If he started with 13, how many orange slices does he have left?
John has __ orange slices left.

John has 5 orange slices left.
Explanation:
John ate 8 orange slices. He started with 13 slices. A number bond is a simple addition of two numbers that add up to give the sum. In the above image we can observe a number sentence 13 – 8 =5. Break thirteen orange slices into two parts as ten slices and three slices. Subtract eight slices from ten slices then we got two orange slices. ADD two with three then we got five. John has 5 orange slices left.

Question 7.
Match the addition number sentence to the subtraction number sentence. Fill in the missing numbers.

a. 12 â€“ 8 = _____Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â

b. 15 â€“ 8 = _____Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â

c. 18 – 8 = _____Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â

d. 11 â€“ 8 =_____Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â