level.1
level.2
level.3
level.4
level.5
100

9-8=

1

100

10+9=

19

100

9-6=

3

100

9*4=

36

100

100-50=

50

200

21+78=

99

200

32-20=

-12

200

10*2=

20

200

30-13

17

200

20+22=

42

300

200+100=

300

300

200*4=

800

300

300/6=

50

300

47*17=

799

300

34-5=

29

400

78*23=

1794

400

43*12

516

400

23/23=

1

400

99+80=

179

400

(45*12)-6=

534

500

120-50=

70

500

56*90=

5040

500

280*7=

1960

500

500*30=

15,000

500

60-(12*40)+5-13=

-428

M
e
n
u