Same Sign
Different Sign
Mix Sign
100

- 4 + -5 =

-9

100

-3 + 1 = 

-2

100

8 + 10 =

18

200

45 +25 = 

70

200

9 + -5 =

4

200

-10 +-10= 

-20

300

-15 + -9 = 

-24

300

-18 + 8 = 

-10
300

7 + -5 =

2

400

-26 + -11 = 

- 37

400

-33 + 11= 

-22

400

66 + -18 =

48

500

-97 + -45 = 

- 142

500

- 87 + 44 =

-43

500

-89 + 53 =

-36

M
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