b) -5+(-3)x(+8)--------------------------------------------------------------
R:
c)(-6)x(+5)-(-4)x(+3) ---------------------------------------------------------
R:
d)(-5+1)x(-8+2) ---------------------------------------------------------
R:
e)6-(-6+4)x(-5+9)--------------------------------------------------------------
R:
f)-3-3x(-3)-----------------------------------
R:
Soluções para a tarefa
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B) -5+(-3)x(+8)
-5+(-24)
-5-24=29
c)(-6)x(+5)-(-4)x(+3) ------
-30-(-12)
-30+12=-18
d)(-5+1)x(-8+2)
-4x-6=24
e)6-(-6+4)x(-5+9)
-6 (-2)x (4)
-6-8=_
-14
f)-3-3x(-3)
-3+9=6
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