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Easy Addition
Hard Addition
Easy Subtraction
Hard Subtraction
100

10 + 4 = ____.

14

100

20 + 10 = ____

30

100

2 - 1 = ____

1

100

22 - 12 = ____

10

200

24 + 6 = ____.

30

200

22 + 11 _____. 

33

200

8 - 6 = ____

2

200

32 - 11 = ___

21

300

32 + 1 = ____

33

300

40 + 12 = ____

42

300

9 - 5 = ____

4

300

40 - 14 = ____

26

400

87 + 2 = ____

89

400

14 + 12 = ____

26

400

9 - 3 = ____

6

400

70 - 13 = ____

57

500

100 + 10 = ____

110

500

56 + 23 = ____

79

500

12 - 3 = ____

9

500

100 - 40 = ____

60