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100

-5 +7

2

100

-4 - 9

-13

100

-9 x 5

-45

100

15 divided by -3

-5

100

2 x 25

50

200

-8 +2

-6

200

-21 - 14 

-35

200

-25 x -7

175

200

18 divided by -6

-3

200

1.7 - 8.3

-6.6

300

-9 +8

-1

300

-21 - 18

-39

300

14 x -4

-56

300

-16 divided by -4

4

300

12.9 + (-6.1)

6.8

400

-13+9

-4

400

29 - (-17)

-12

400

14 x -17

238

400

56 divided by -4

-14

400

-13 x 17

221

500

-19+7

-12

500

-19 - 21

2

500

-5.3 x 7.7

40.81

500

72 divided by 12

6

500

1387 divided by 19

73