We included **H****MH Into Math Grade 1 Answer Key**** PDF** **Module 2 Lesson 3 Count On to Subtract** to make students experts in learning maths.

## HMH Into Math Grade 1 Module 2 Lesson 3 Answer Key Count On to Subtract

I Can count on to solve a subtraction problem.

**Spark Your Learning**

8 children sit at tables. 5 children sit at a red table. The rest sit at a blue table. How many children sit at the blue table?

How can you count on to solve the problem?

Answer:

Explanation:

8 children sit at tables

5 children sit at a red table

The rest sit at a blue table

Count on from the number you subtract. Stop when you reach the number you subtract from

I counted from the number 5 and stopped at 8

I counted 3 more numbers

8 – 5 = 3

So, 3 children sit at the blue table.

Read the problem to children. Allow pairs to choose tools and work together to show how to count on to solve the problem.

**Build Understanding**

There are 9 acorns. 7 acorns are on the ground. The rest of them are in a tree. How many acorns are in the tree?

9 – 7 =

A. How can you count on to show the problem?

Answer:

B. How can you complete the equation to solve the problem?

9 – 7 = ___

C. ___ acorns are in the tree.

Explanation:

There are 9 acorns

7 acorns are on the ground

The rest of them are in a tree

I counted from 7 till 9

I counted 2 more

9 – 7 = 2

So, 2 acorns are in the tree.

**Turn and Talk** Explain how you counted on to solve this problem.

**Step It Out**

1. Ann has 7 flowers. 4 are in a vase. She holds the rest. How can you count on to find how many flowers Ann holds?

A. What number do you subtract? ____

What number do you subtract from? ___

B. Count on from the number you subtract. Stop when you reach the number you subtract from.

How many flowers did you count on? So, 7 – 4 = ___

C. Ann holds ___ flowers.

Answer:

Ann holds 3 flowers

Explanation:

Ann has 7 flowers. 4 are in a vase

She holds the rest

I subtract 4

I subtract 4 from 7

Count on from the number you subtract. Stop when you reach the number you subtract from

I counted 3 more numbers

7 – 4 = 3

So, Ann holds 3 flowers.

**Check Understanding Math Board**

**Count on to subtract.**

Question 1.

Nate has 9 marbles. 8 are in a bag. The rest of them are in his hand. How many marbles are in his hand?

___ – ___ = ___ ___ marble

Answer:

9 – 8 = 1

Explanation:

Nate has 9 marbles. 8 are in a bag

The rest of them are in his hand

I subtract 8

I subtract 8 from 9

Count on from the number you subtract. Stop when you reach the number you subtract from

I counted 1 more number

9 – 8 = 1

So, Nate holds 1 marble in his hand.

**On Your Own**

**Count on to subtract.**

Question 2.

**Model with Mathematics**

Haldi has 11 beads. 9 of them are on the floor. The rest are on the table. How many beads are on the table?

___ – ___ = ___

___ beads are on the table.

Answer:

11 – 9 = 2

2 beads are on the table

Explanation:

Haldi has 11 beads. 9 of them are on the floor

The rest are on the table

I subtract 9

I subtract 9 from 11

Count on from the number you subtract. Stop when you reach the number you subtract from

I counted 2 more numbers

11 – 9 = 2

So, 2 beads are on the table.

Question 3.

**Construct Arguments** Explain how Malik can count on to subtract 10 – 7.

Answer:

I subtract 7

I subtract 7 from 10

Count on from the number you subtract. Stop when you reach the number you subtract from

I counted 3 more numbers

So, 10 – 7 = 3.

**Count on to subtract.**

Question 4.

8 – 7 = ___

Answer:

8 – 7 = 1

Explanation:

I subtract 7

I subtract 7 from 8

Count on from the number you subtract. Stop when you reach the number you subtract from

I counted 1 more number

So, 8 – 7 = 1

Question 5.

10 – 8 = ___

Answer:

10 – 8 = 2

Explanation:

I subtract 8

I subtract 8 from 10

Count on from the number you subtract. Stop when you reach the number you subtract from

I counted 2 more numbers

So, 10 – 8 = 2.

Question 6.

6 – 6 = ___

Answer:

6 – 6 = 0

Explanation:

I subtract 6

I subtract 6 from 6

Count on from the number you subtract. Stop when you reach the number you subtract from

I did not count any numbers as no number is are left.

So, 6 – 6 = 0

Question 7.

12 – 9 = ___

Answer:

12 – 9 = 3

Explanation:

I subtract 9

I subtract 9 from 12

Count on from the number you subtract. Stop when you reach the number you subtract from

I counted 3 more numbers

So, 12 – 9 = 3

**I’m in a Learning Mindset!**

What parts of counting on to subtract can I do on my own? What parts do I need help with?