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Pojardaniela197
a fost răspuns

URGENT VA ROG
(-3+8)x9
(8-11)x(7-5)
8x(-15)-(5-10)x(-6)
(5-7-9)x(7-9-12)
(-2010+2009)x(-2009+2008)

Răspuns :

Beautybeatrice
A) (-3+8)x9=
=5x9
=45
B) (8-11)x(7-5)=
=-3x2
=-6
C) 8x(-15)-(5-10)x(-6)=
=8x(-15)-(-5)x(-6)
=8x(-15)+5x(-6)
=-120-30
=-150
D) (5-7-9)x(7-9-12)=
=(5-16)x(7-21)
=-11x(-14)
=154
E) (-2010+2009)x(-2009+2008)=
=-1x(-1)
=1

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