a)(-3)×(-15)=45
b)(-8)×(-7)=56
c)(+14)×(-2)=-28
d)12×(-11)=-132
e)(-24)×9=-216
f)-24×15=-360
Calculați:
a)4×(-9)×(-5)=+180
b)-6×7×(-4)×(-8)=1344
c)(-4+7)×(-11)=121
d)-3×(-1+14)=-39
e)7+5×(-8)=-280
f)-21-3×(-6)=144
g)-8+(-8)×(-2)=32
h)(4-9)×(7-3)=-12
i)3×(-5)-(-7)×(-3+1)+8×(-3)=-108
j)[8-4×(2-3)]×(7-9)=8
