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Va rog,repede!!20 p+coronita!!
Calculati:
a)-13+(-2-3)
b)(-4+7)-(-2-3)+(-6+1)
c)(-6-4)-(-10+8)+(-2+9)
d)[-6-(-9+2)+(-5+8)]-[-2+6-(-6+8)]=


Răspuns :

a)-13+(-2-3) = -13 -5 =-18
b)(-4+7)-(-2-3)+(-6+1) = 3+5-5=3
c)(-6-4)-(-10+8)+(-2+9) = -10+2+7=-1
d)[-6-(-9+2)+(-5+8)]-[-2+6-(-6+8)]=-6+7+3 - (4-2) = 4-2=2
a)-13+(-2-3)=-13-5=-18
b)(-4+7)-(-2-3)+(-6+1)=3-5+(-5)=-2-5=-7
c)-10-2+7=-12+7=-5