subtraction
subtraction
addition
addition
mix
100

38-21=

17

100

57-39=

18

100

35+54=

89

100

62+12=

74

100

7+20=

27

200

95-64=

31

200

50-13=

37

200

29+29=

58

200

15+7=

22

200

19-15=

4

300

68-15=

53

300

77-29=

48

300

36+28=

64

300

43+7=

50

300

124+25=

149

400

74-48=

26

400

84-49=

35

400

7+8=

15

400

12+7=

19

400

90-15=

75

500

20-8=

12

500

17-10=

7

500

51+10=

61

500

59+59=

118

500

100-7=

93

M
e
n
u