1st Grade Math

Adding within 20

100

4+8=

4+8=12

200

9+9=

9+9=18

300

10+7=

10+7=17

400

16+4=

16+4=20

500

11+5=

11+5=16

Subtracting within 20

100

8-4=

8-4=4

200

10-3=

10-3=7

300

18-8=

18-8=10

400

20-13=

20-13=7

500

20-11=

20-11=9

Adding 3 numbers

100

1+2+4=

1+2+4=7

200

2+3+7=

2+3+7=12

300

4+1+9=

4+1+9=14

400

5+9+1=

5+9+1=15

500

10+10+10=

10+10+10=30