Adding
Subtracting
Missing Addends
100

10+5=

15

100

10-9=

1

100

1+___=3

2

200

7+7=

14

200

9-3=

6

200

5+____= 9

4

300

12+2=

14

300

20-10=

10

300

1+___= 9

8

400

15+5=

20

400

19-9=

10

400

____+8= 15

7

500

20+0=

20

500

20-7=

13

500

10+___=19

9

M
e
n
u