Question

Вычислите:
1) 4×7×(-2) ; 2) -1×(-2)×8; 3) (-7)×(-10)×(-5) ; 4) (-3)×(-1)×(-4); 5)(-8)×11×(-25); 6) (-48)×11×4 .​

Answer 1

$displaystyle tt 1) : 4cdot7cdot(-2)=28cdot(-2)=-56\displaystyle tt 2) : -1cdot(-2)cdot8=2cdot8=16\displaystyle tt 3) : (-7)cdot(-10)cdot(-5)=70cdot(-5)=-350\displaystyle tt 4) : (-3)cdot(-1)cdot(-4)=3cdot(-4)=-12\displaystyle tt 5) : (-8)cdot11cdot(-25)=-88cdot(-25)=2200\displaystyle tt 6) : (-48)cdot11cdot4=-528cdot4=-2112$

Answer 2

1) 4 × 7 × (-2) = 28 × -2 = -56

2) -1 × (-2) × 8 = 2 × 8 = 16

3) (-7) × (-10) × (-5) = 70 × -5 = -350

4) (-3) × (-1) × (-4) = 3 × -4 = -12

5) (-8) × 11 × (-25) = -88 × -25 = 2200

6) (-48) × 11 × 4 = -528 × 4 = -2112