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100

-7+4

-3

100

5-8

-3

100

5•-8

-40

100

5÷10

2


100

5•5

25


200

-6+5

-11

200

-5-10

5

200

5•8

40

200

6÷2

3

200

6•9

54

300

23+7

30

300

7-5

12

300

-6•3

-18

300

7÷4

1.75

300

-10•5

-50

400

-5+5

0

400

-20-10

-10

400

3•5

15

400

2÷2

1

400

2•2

4

500

10+10

20

500

50-20

70

500

-9•2

-18

500

3÷4

75


500

-7•7

-49