Eureka Math Grade 1 Module 1 Lesson 27 Answer Key

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

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

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.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Question 5.

Answer:

Use the number path to count on.

Question 6.

Answer:

Question 7.

Answer:

Hop back on the number path to count back.

Question 8.
10 – 1 = ______
Answer:9
10-1=9

Question 9.
9 – 2 = ______
Answer:7
9-2=7

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

Answer:

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

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.
Answer:

b.
Answer:

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

Answer:

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.
Answer: