Easy
medium
hard
insane
impossible
100

80+90

170

100

80-40

40

100

58 times 80

4640

100

98 divided by 2 

49

100

9865 times by 95

937175

200

1+1

2 LOL

200

50-20

30

200

0 times 0

0 Another easy LOL

200

123 divided by 6

20.5

200

989-98 times 9

107

300

90+70

160

300

100-98

2

300

89 times 12

1068

300

70 divided by 2

35

300

900 times 9.20

8280

400

90+160

250

400

603-363

240

400

67 times 89

5963

400

40 divided by 2

20

400

6565 divided 5

1313

500

800+1,580

2380

500

800-200

600

500

1,369 times 12

16428

500

6566 divided by 2

3283

500

3980 times 65

258700