-45:3= -15-36:(-12)= 3 [(-20)-(-5)]x(-10)=(-20+5)*(-10)= -150 x (-10) = 150 [(-7)2+(-3)2]:(-2) [14+6]:(-2)= 20:(-2)=-10[(-21);3+7]:(-32)=(-7+7):(-32)=0:(-32)=0
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-45:3= -15
-36:(-12)= 3
[(-20)-(-5)]x(-10)=(-20+5)*(-10)= -150 x (-10) = 150
[(-7)2+(-3)2]:(-2) [14+6]:(-2)= 20:(-2)=-10
[(-21);3+7]:(-32)=(-7+7):(-32)=0:(-32)=0