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Question

13+(-7)=

-40+30=

-15+20=

70+(-130)=

-7.6+8.9=

-8+11.2=

2+(-0.24)=

0.8+(-1.9)=

Answer 1

13 -7 = 6

-40 +30 = -10

-15+20=5

70+(-130)= 70-130 = -60

-7,6+8,9=1,3

-8+11,2= 3,2

2+(-0,24)=2-0,24=1,76

0,8+(-1,9)=0,8-1,9=1,1

 

Answer 2

6 -10 5 -60 1.3 3.2 1,76 -1.1