Show:
subtract
adding
division
multiplication
mystery
100

6-47

-41

100

46+787

833

100

2/1

1

100

    64x2

128

100

4+67

71

200

765-64767

-64002

200

987+876

1863

200

6/2

3

200

576*7

4032

200

97-87

10

300

91847-8476

83371

300

28+87

115

300

9/2

4.5

300

75*578

43200

300

27*31

837

400

8753-74618

-65865

400

248+57

305

400

42/4

10.5

400

8769*576

5050944

400

123/456

0.269736842105

500

764976-34791367

-34026391

500

24+154

178

500

555/6

92.5

500

82769*85270

7057712630

500

14363452345+907865456666665

0.0000158211244183