Negative -
Positive +
Negative & Positive
Positive & Negative
100

-4+ -8

-12

100

2+4

6

100

-2+1

-1

100

10+(-2)

8

200

-5+-5

-10

200

5+10

15

200

-5+4

-1

200

5+(-4)

1

300

-8+-5

-13

300

7+7

14

300

-10+7

-3

300

7+(-10)

-3

400

-20+-30

-50

400

20+30

50

400

-2+7

5

400

10+(-10)

0

500

-100+-25

-125

500

45+25

70

500

-10+20

10

500

3+(-10)

-7