Addition
Subtraction
Mystery
100

48+20

68

100

81-60

21

100

63-33

30

200

24+54

78

200

77-50

27

200

81+15

96

300

77+10

87

300

61-30

31

300

60-0

60

400

83+13

96

400

53-42

11

400

63-51

12

500

31+23`

54

500

45-4

41

500

41+42

83

M
e
n
u