Réponses

2013-11-28T17:57:12+01:00
-4*(-12-8)
= -4*(-20)
= 40

(-3)*6+4*5
= -18+20
= 2

2*(-8)+(-9)*4
= -16-36
= -52

-15*2+4*(-7)
= -30-28
= -58

1,5*3+(-2,5)*(-4)
= 4,5+10
= 14,5

-5*2,6+(12-4)*3
= -13+8*3
= -13+24
= 11