Addition and Subtraction to 20

Addition

100

12+3=__

15

200

11+5=__

16

300

12+7=__

19

400

13+7=__

20

500

10+9=__

19

Subtraction

100

14-4=__

10

200

16-5=_

11

300

18-9=_

9

400

19-6=_

13

500

20-8=_

12

Find the Missing Number

100

12-_=12

0

200

10+_=19

9

300

_-7=7

14

400

_+9=17

8

500

14-_=8

6

Mystery Category

100

10+__=14

10+4=14

200

 _+6=14

8+6=14

300

 _-4=9

13-4=9

400

9+_=14

9+5=14

500

 _-5=12

17-5=12

Real World Problems

100

Johnny has 18 stickers in his backpack. He gives 7 stickers away to his friends. How many stickers does he have now? Johnny has ____ stickers

18-7=11

200

Hannah has 14 erasers in her desk. One of her friends gave her 6 more erasers. How many erasers does Hannah have now? Hannah has ____ erasers.

14+6=20

300

Dylan buys 12 pencils. His mom buys him 6 more pencils. How many pencils does Dylan have now? Dylan has___ pencils

12+6=18

400

Fredy has 15 red and black markers. He has 5 red markers. How many black markers does Fredy have? Fredy has __ black markers

15-5=10

500

Ava had 20 crayons in her crayon box. Ava now only has 9 crayons. How many crayons did Ava lose? Ava lost ___ crayons?

20- 9= 11