Addition 1
Addition 2
Addition 3
100
9 + -8

1

100

-23 + 15

-8

100

819 + -319

500

200

-1 + -7

-8

200

35 + -53

-18

200

-699 + 349

-350

300

5 + -9

-4

300

-47 + -23

-70

300

765 + -326

439

400

-3 + 8

5

400

31 + -14

17

400

-910 + -800

-1710

500

-2 + - 9

-11

500

-39 + -45

-84

500

-429 + -756 =

-1185

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