计算下列各题(能用简便算法的用简便算法计算):
(1) $(-24)×(-15)×2$;
(2) $(-53)×41×27$;
(3) $(-14)×32×(-7)$;
(4) $(-49)×8×15$;
(5) $(-5.63)×30×(+70)$;
(6) $(-1\ \frac{1}{7})×21×(-\frac{7}{16})$;
(7) $(-0.125)×\frac{8}{5}×(-25)$;
(8) $\frac{5}{6}×(-1.875)×(-1\ \frac{1}{5})$。
(1) $(-24)×(-15)×2$;
(2) $(-53)×41×27$;
(3) $(-14)×32×(-7)$;
(4) $(-49)×8×15$;
(5) $(-5.63)×30×(+70)$;
(6) $(-1\ \frac{1}{7})×21×(-\frac{7}{16})$;
(7) $(-0.125)×\frac{8}{5}×(-25)$;
(8) $\frac{5}{6}×(-1.875)×(-1\ \frac{1}{5})$。
答案
(1) $720$
(2) $-58\ 671$
(3) $3\ 136$
(4) $-5\ 880$
(5) $-11\ 823$
(6) $\dfrac{21}{2}$
(7) $5$
(8) $1.875$
(2) $-58\ 671$
(3) $3\ 136$
(4) $-5\ 880$
(5) $-11\ 823$
(6) $\dfrac{21}{2}$
(7) $5$
(8) $1.875$
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