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Calculați: a) (-6+10)-(5-8) b) (-2-3)-(-7+1) c) (4+2)-(-3+7)+(-3-4) d) 5-(-3)+(1-2)-(5+4)-2 e) -3+(-10-1)+(-2+3)-(-3+7-(5+2)

Răspuns :

a) (-6+10)-(5-8)
=-6+10-5+8
=7
b) (-2-3)-(-7+1)
=-2-3+7-1
=1
c) (4+2)-(-3+7)+(-3-4)
=4+2+3-7-3-4
= -5
d)5-(-3)+(1-2)-(5+4)-2
=5+3+1-2-5-4-2
= -4
e) -3+(-10-1)+(-2+3)-(-3+7-(5+2)
= -3-10-1-2+3-(-3+7-5-2)
= -3-10-1-2+3+3-7+5+2
= -4

coroana?