Question

Va rog sa ma ajutati! ex. nr 1.
Calculati:a) (-3)× (-5)+(-16)÷8; b) 15÷(-3) +2×3-11; c) -2+3×(-5)+4; (-2+3)×(-5)+4; (-2+3)×(-5+4); d) 1 -2×[4×(-5)-(2 - 8)÷(-3)]; e)-12:4×(-2)+3×(-4)÷2.

Answer 1

a) +15-8=+7
b) -5+6-11=-10
c) -2-15+4=-17+4=-13
1×(-5)+4=-5+4=-1
1×(-1)=-1
d) 1-2×[-20-2]=1-2×(-22)=1+44=45
e) -3×(-2)-12÷2=+6-6=0