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100

6/(2)=

3

100

60x2=

120

100

15-(5)

10

100

12+(5)=

17

100

What is... 15+(-15).

Its 0

200

100+(-50)=

50

300

5+10+(-4)=

11

400

43+(-12)+12+12=

55

500

158+(-76)+54+(-21)=

115

500

9+56-78x21-67=

-1640