计算:
(1)$(-85)×(-25)×(-4)$; (2)$(-8)×(-\frac {4}{3})×(-1.25)×\frac {5}{4}$;
(3)$(-125)×(-25)×4×0×(-8)$; (4)$(\frac {1}{4}+\frac {3}{8}-\frac {7}{12})×(-24)$;
(5)$(-6)^{2}×(\frac {3}{4}-\frac {5}{6}+\frac {2}{9})$; (6)$18×(-\frac {2}{3})+13×\frac {2}{3}-4×\frac {2}{3}$;
(7)$4×(-3\frac {6}{7})-3×(-3\frac {6}{7})-6×3\frac {6}{7}$; (8)$99\frac {71}{72}×(-36)$.
(1)$(-85)×(-25)×(-4)$; (2)$(-8)×(-\frac {4}{3})×(-1.25)×\frac {5}{4}$;
(3)$(-125)×(-25)×4×0×(-8)$; (4)$(\frac {1}{4}+\frac {3}{8}-\frac {7}{12})×(-24)$;
(5)$(-6)^{2}×(\frac {3}{4}-\frac {5}{6}+\frac {2}{9})$; (6)$18×(-\frac {2}{3})+13×\frac {2}{3}-4×\frac {2}{3}$;
(7)$4×(-3\frac {6}{7})-3×(-3\frac {6}{7})-6×3\frac {6}{7}$; (8)$99\frac {71}{72}×(-36)$.
答案:
(1)-8500
(2)$-\frac{50}{3}$
(3)0
(4)-1
(5)5
(6)-6
(7)-27
(8)$-3599\frac{1}{2}$
(1)-8500
(2)$-\frac{50}{3}$
(3)0
(4)-1
(5)5
(6)-6
(7)-27
(8)$-3599\frac{1}{2}$
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