2-Digit Lower Addition
2-Digit Lower Subtraction
2-Digit Higher Addition
2-Digit Higher Subtraction
Mixed Practice
100

15+12

27

100

19-11

8

100

30+10

40

100

30-20

10

100

10+15

25

200

13+17

30

200

17-12

5

200

70+30

100

200

70-33

37

200

35-12

23

300

14+15

29

300

20-6

14

300

35+41

76

300

46-15

31

300

54-11

43

400

20+30

50

400

20-7

13

400

47+22

69

400

90-50

40

400

36+23

59

500

22+19

41

500

24-11

13

500

51+33

64

500

99-25

74

500

76-42

34

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