Addition and Subtraction to 20

Addition Facts

100

Find the missing number: 

4+4=?

8

200

Find the missing number: 

9+9=?

18

300

Find the missing number:

14+5=?

19

400

Find the missing number: 

13+?=16

3

500

Find the missing number:

7+10=16+?

1

Subtraction Facts

100

Find the missing number:

15-5=?

10

200

Find the missing number:

14-3=?

11

300

Find the missing number:

16-9=?

7

400

Find the missing number:

16-?=5

11

500

Find the missing number:

14-7=10-?

3

Word Problems

100

Andy has 9 stickers. His sister gives him 5 more. How many stickers does he have in all?

14 stickers

200

Tia has 14 hair clips. She gives her sister 7 hair clips. How many does she have left?

7 hair clips

300

Greg has 18 stickers. Ana has 6 fewer than Greg. How many stickers does Ana have?

12 stickers 

400

Ben had 16 legos. Some fell on the floor. He has 7 left on his desk. How many fell on the floor?

9 legos

500

Jim has 6 marbles. Lisa has 5 more than Jim. How many do they have in all?

17 marbles 

Jim has 6 marbles. 

Lisa has 11 marbles (6+5=11) 

11+6=17 marbles 

Vocabulary

100

What is this called?

+

plus sign

200

What is this called?

-

minus sign

300

What is this called?

=

equal sign 

400

What is this called?

8+6=14

Number sentence or equation 

500

What kind of fact is this?

6+7=13

doubles plus 1 

Make a 10

100

10 and ? make 10 

0

200

5 and ? make 10 

5

300

6 and ? make 10 

4

400

2 and ? make 10 

8

500

3 and ? make 10 

7