Question

1) (+7)*(-4). 2) (+15)*(-3). 3) (-8)*(-6). 4) (-6)*(-9). 5) (-42)/2. 6) -30/(-10).
7) 64/(-4). 8) -270/(-30).
Срочно нужно пж

Answer 1

Ответ:

$1.( + 7) \times ( - 4) = - (7 \times 4) = - 28$

$2.( + 15) \times ( - 3) = - (15 \times 3) = - 45$

$3.( - 8) \times ( - 6) = 8 \times 6 = 48$

$4.( - 6) \times ( - 9) = 6 \times 9 = 54$

$5.\frac{( - 42) }{2} = \frac{ - 42 \div 2}{2 \div 2} = \frac{ - 21}{1} = - 21$

$6. \frac{ - 30}{( - 10)} = \frac{ - 30 \div ( - 10)}{ - 10 \div ( - 10)} = \frac{3}{1} = 3$

$7.\frac{64}{( - 4)} = - 16$

$8. \frac{ - 270}{( - 30)} = \frac{ - 270 \div ( - 30)}{ - 30 \div ( - 30)} = \frac{9}{1} = 9$