Question

помогите пожалуйста.номер 615

Answer 1

1)
$- 1.7 \times (25.5 \times 4) = \\ = - 1.7 \times 102 = - 173.4$

2)
$- 1.2 \times (26.6 \times 1.5) = \\ = - 1.2 \times 39.9 = - 47.88$

3)
$( - 16 \times 14.5) \times 2.9 = \\ = - 232 \times 2.9 = - 672.8$

4)
$- 0.5 \times ( - 14) \times 12.5 \times 0.6 = \\ = 7 \times 12.5 \times 0.6 = \\ = 87.5 \times 0.6 = \\ = 52.5$