## Engage NY Eureka Math 1st Grade Module 1 Lesson 27 Answer Key

### Eureka Math Grade 1 Module 1 Lesson 27 Problem Set Answer Key

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Rewrite the subtraction number sentence as an addition number sentence.
Place a around the unknown. Use the number path if you want to.

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Use the number path to count on.

Question 6.

Question 7.

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Hop back on the number path to count back.

Question 8.
10 – 1 = ______
10-1=9

Question 9.
9 – 2 = ______
9-2=7

Question 10.
Pick the best way to solve the problem. Check the box.

### Eureka Math Grade 1 Module 1 Lesson 27 Exit Ticket Answer Key

To solve 7 – 6, Ben thinks you should count back, and Pat thinks you should count on. Which is the best way to solve this expression? Make a simple math drawing to show why.
7 – 6 = _____
Answer: Count on ,Ben is right becaue counting from 6 to 7 is simple tham 7 to back till 6 digits
7-6=1

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### Eureka Math Grade 1 Module 1 Lesson 27 Homework Answer Key

Use the number path to complete the number bond, and write an addition and a subtraction sentence to match.

Question 1.

a.

b.

Question 2.
Solve the number sentences. Pick the best way to solve. Check the box.

Question 3.
Solve the number sentence. Pick the best way to solve. Use the number path to show why.

I counted _____________ because it needed fewer hops.
Answer: I counted on because it needed fewer hops.

I counted _____________ because it needed fewer hops.
Answer: I counted back because it needed fewer hops.

Make a math drawing or write a number sentence to show why this is best.