Addition
Subtraction
Both
100

3-2=

1

100

3-1=

2

100

3+8=

11

200

10+ 4=

14

200

13-10=

3

200

6+9=

15

300

20+12=

32

300

25-10=

15

300

35+5=

40

400

50+41=

91

400

40-21=

19

400

56+2=

58

500

110+123=

233

500

500-200=

300

500

100+250=

350

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