Unit 1 Review

Number Partners for 10

100

___ + 9 = 10

1 + 9 = 10

200

10 = ___ + 4

10 = 6 + 4

300

3 + ___ = 10

3 + 7 = 10

400

10 = 5 + ___

10 = 5 + 5

500

Is 0 + 10 equal to 10 + 0?

Yes!

Add & Subtract Within 10

100

What is 2 + 7?

2 + 7 = 9

200

What is 5 - 2?

5 - 2 = 3

300

What is 6 + 4?

6 + 4 = 10

400

What is 8 - 3?

8 - 3 = 5

500

Tyler has 9 grapes. He eats 6 grapes. How many grapes are there now?

9 - 6 = 3. There are 3 grapes.

Counting Strategies to Add & Subtract

100

Use a number path to solve 3 + 3

3 + 3 = 6

200

Use a number path to solve 4 - 2 

4 - 2 = 2

300

Use a number path to solve 6 + 3

6 + 3 = 9

400

Use a number path to solve 7 - 6

7 - 6 = 1

500

Use a number path to solve 2 + 8

2 + 8 = 10

Use Addition to Subtract

100

Leon has 9 leaves. 6 leaves are red. The rest are yellow. How many leaves are yellow?

6 + 3 = 9

9 - 6 = 3

3 leaves are yellow.  

200

If 5 + 3 = 8, what is 8 - 5?

8 - 5 = 3

300

If 9 + 1 = 10, what is 10 - 9?

10 - 9 = 1

400

If 4 + 3 = 7, what is 7 - 3?

7 - 3 = 4

500

Jenna has 8 stickers. 5 stickers are big. The rest are small. How many stickers are small?

5 + 3 = 8

8 - 5 = 3

3 stickers are small.

Word Problems to 10

100

6 cups are on the shelf. You put more on the shelf. Now there are 9 cups. How many cups did you add?

6 + __ = 9

9 - 6 = 3

3 cups were added to the shelf. 

200

There are 3 frogs. More frogs join. Now there are 5. How many joined?

3 + ___ = 5

5 - 3 = 2

2 frogs joined.

300

Jade has 2 apples. She gets more. Now she has 6. How many more apples did Jade get?

2 + ___ = 6

6 - 2 = 4

Jade got 4 apples.

400

There are 8 basketballs. Some roll away. Now there are 6. How many rolled away? 

8 - ___ = 6

8 - 2 = 6 

2 basketballs rolled away. 

500

There are 4 bunnies. Some hop away. Now there is 1. How many bunnies hopped away?

4 - ___ = 1

4 - 3 = 1

3 bunnies hopped away.