Show:
plus
minus
multiply
division
mix
100

12+12=

24

100

25-23=

2

100

9*7=

63

100

35/5=

7

100

14-15=

-1

200

18+13=

31

200

2+1=

3

200

9*9

81

200

84/4=

21

200

78-2=

76

300

65-21=

44

300

51-13=

38

300

45-19=

26

300

11-1=

10

300

10+10=

20

400

54-2=

52

400

-17-11=

-28

400

34-11=

23

400

23+1=

24

400

144/12

12

500

117+19=

136

500

95-31=

64

500

9*12=

108

500

204/3=

68

500

1015-113=

902