Question

va rooog dau coroana si 49 de puncte ​

Answer 1

12. a) |5|*(-6)*(-3)+10*(-12)

=5*(-6)*(-3)+10*(-12)

= -30*(-3)-120

=90-120

= -30

b) 3*|-6|*(-4)-(-7)*(-13)

=3*6*(-4)-91

= -72-91

= -163

c) (-5)*(-16)+|-7|*2*(-8)

=(-5)*(-16)+7*2*(-8)

=80+14*(-8)

=80-112

= -32

d) 10*(-17)+(-3)*|5|*(-9)

=10*(-17)+(-3)*5*(-9)

= -170-15*(-9)

= -170+135

= -35

e) (-15)*(-7)+2*|6|*(-10)

=(-15)*(-7)+2*6*(-10)

=105+12*(-10)

=105-120

= -15

f) |-12|*(-8)-4*(-5)*(-6)

=12*(-8)-4*(-5)*(-6)

= -96+20*(-6)

= -96-120

= -216

Answer 2

a)

|5|×(-6)×(-3)+10×(-12)

5×(-6)×(-3)+(-120)

(-30)×(-3)-120

90-120

-30

b)

3×|-6|×(-4)-(-7)×(-13)

3×6×(-4)-91

16×(-4)-91

-72-91

-163

c)

(-5)×(-16)+|-7|×2×(-8)

80 +7×2×(-8)

80+14×(-8)

80-112

-32

d)

10×(-17)+(-3)×|5|×(-9)

-170+(-3)×5×(-9)

-170+(-15)×(-9)

-170+135

-35

e)

(-15)×(-7)+2×|6|×(-10)

105+2×6×(-10)

105+12×(-10)

105-120

-15

f)

|-12|×(-8)-4×(-5)×(-6)

12×(-8)+20×(-6)

-96 -120

-216