Question

calcule as seguintes operações com números inteiros e racionais
a)(2,2)+(-2)?
b)(-23)-(-5)?
c)(+53)+(-8)?
d)(-73).(-2)?
e)(-16):(+2)?
f)(+3/2).(-5/8)
g)(5/2):(+3/4)?
h)15+(-2)
i)-10-3?
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Answer 1

a)(2,2)+(-2)
2,2-2=0,2
b)-23-(-5
-23+5=-18
c)+53+(-8)
+53-8=+45
d)-72.-2=144
e)-16/2=-8
F)(+3/2).(-5/8)
1,5.-0,626=-0,9375
g)(5/2):(3/4)
2,5:0,75=3,333...
h)15-2=3
i)-10-3=-13