Question

a)(-9)+(+5)
b)(-3,5)+(+4)
c)(-4)-(+2)-(0,7)
f)(-1/4)-(-3/5)
2)
a)(+3).(+2)
b)3.(-0,2)
c)3.(-7).2
d)(-4).(-2).(-2)
e)(-60)÷3
g)(-2)+3.(-8)
h)32÷(-4)+(11).(-10)
i)0,3.(2/10).(-1/2)
j)2/5.5/8.(-1/2)
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Answer 1

Resposta:

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