Question

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Answer 1

Answer:

a) -20+ 30= 10

b) +10-12=-2

c) +8-20=-12

d) -7+(-3)=-10

e)-20+(-30)=-50

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Answer 2

Answer:

$-1) - 20 + 30 = 10 \\ 2)10 - 12 = - 2 \\ 4) - 3 + - 3 = - 10 \\ 5) - 20 - 30 = - 50 \\3) 8-20=-12thank \: you$