Addition
Subtraction
Multiplacation
Division
demonically hard
100

97+72

169

100

67-43

24

100

8x9

72

100

54  /   6

9

100

1+1

11

200

128+234

362

200

167-128

39

200

12x8

96

200

108 / 6 

18

200

Σ

sigma

300

453+569

1022

300

349-267

82

300

4x129

516

300

207 / 3

69

300

7 / 94

0.0744680851

400

698+789

1487

400

976-879

97

400

23x54

1242

400

414 / 6

69 

400

root hanger 19

4.35889894354

500

9,864+8,646

18,510

500

5678-4987

691

500

123x345

42,435

500

9873 / 9

1097

500

100,000 points     30 letters of pi

3.14159265358979323846264338327