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100

47+92

186

100

62-47

15

100

 4x4

16

100

81=9

9

100

13+46-64

-5

200

172+122

294

200

666-626

40

200

9x9

81

200

72=46

1.565217391304348

200

-5+45

40

300

262+486

748

300

400-437

-37

300

6x4

24

300

46=90

0.511111111111111

300

99=99

1

400

999+999

1998

400

327-1220

-1220

400

12x12

144

400

65=72

0.902777777777778

400

7777x7777

60481729

500

6226+8448

14674

500

1220-666

554

500

72x72

5184

500

999=888

1.125

500

9999999999+9999999999

19999999998