One Digit Addition
One Digit Subtraction
Two Digit Addition
Two Digit Subtraction
Mystery Equation
100

3 + 1 =

4

100

2 - 1 =

1

100

17 + 12

29

100

26 - 13 =

13

100

10 + 3 + 12 =

25

200

5 + 5 =

10

200

4 - 2 = 

2

200

23 + 17 =

40

200

39 - 22 =

17

200

36 - 6 - 10 =

20

300

4 +7 =

11

300

8 - 5 =

3

300

46 + 33 =

79

300

45 - 15 =

30

300

59 - 12 - 17 =

30

400

8 + 5 =

13

400

7 - 3 =

4

400

54 + 45 =

99

400

78 - 37 =

41

400

63 + 21 + 16 =

100

500

9 + 9 =

18

500

9 - 4 = 

5

500

77 + 23 = 

100

500

98 - 56 = 

42

500

100 - 41 - 23 =

36

M
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