Subtraction
Addition
Multiplication
100

10-6

4

100

10 + 6

16

100

1 x 8

8

200

25 - 12

13

200

22 + 9

31

200

2 x 6

12

300

36 - 29

6

300

36 + 10

46

300

3 x 7

21

400

87 - 39

48

400

25 + 38

63

400

4 x 8

32

500

91 - 42

49

500

58 + 13

71

500

5 x 10

50