Unit 1 Math Review

Number Partners for 10

100

Give a number combination that equals 10.

Answer may vary.

200

3 + _____ = 10

7

300

Is this equation correct? 

6 + 4 = 9

No, 6 + 4 = 10

400

Give a number equation that equals 10. 

Answers will vary.

500

James has 9 berries. He picks 1 more. How many berries does James have now? 

10 berries

Add and Subtract Within 10

100

4 + 2 = ?

6

200

5 + _____ = 9

4

300

9 - 3 = ?

6

400

7 + _____ = 10

3

500

8 - 5 = ?

3

Using Counting Strategies to Add and Subtract

100

5 + _____ = 9

9 - 5 = _____

4

200

8 + _____ = 10

10 - 8 = _____

2

300

7 + ____ = 10

What 2 equations could you write with these numbers? 

7 + 3 = 10

3 + 7 = 10

400

4 + _____ = 9

What 2 equations could you write using these numbers? 

4 + 5 = 9

5 + 4 = 9

500

What subtraction problem could help you solve this addition problem? 

3 + 6 = 9

9 - 6 = 3 or 

9 - 3 = 6

Word Problems

100

There are 8 pencils. Some pencils break. Now there are 3 pencils. How many pencils broke? 

5 pencils

200

Diego has 4 books. He gets 2 more. How many books does he have now? 

4 books

300

Maya has 9 stickers. She gives some away. Now Maya has 1 sticker. Which equations tell how many stickers Maya gave away?

9 - ? = 1

9 = ? + 1

? - 1 = 9

? = 9 + 1

400

Sally has 8 flowers. She picks some more. Now Sally has 10 flowers. How many flowers did she pick? 

2 flowers

500

Stan has 10 cookies. He ate some of the cookies. Now Stan has 6 cookies. How many did he eat? Which equations show how many he ate? 

10 - ? = 6

? + 6 = 10

10 - ? = 8

Counting on

100

4 + 5 = ?

9

200

8 + 2 = ?

10

300

Is this equation a double? 

6 + 6

Yes

400

3 + 6 = ?

9

500

2 + 5 = ?

7