搜索
1. 计算:
(1)$4×(-\frac {3}{2})^{2}-5÷\frac {1}{2}×(-2)$; (2)$-3^{2}÷3-\frac {2}{3}×12$;
(3)$(-\frac {1}{2})^{2}×2^{3}-(-1)^{3}×6$; (4)$(-2)^{2}+(4-7)÷\frac {3}{2}-|-1|$;
(5)$-2^{2}÷(-4)-3×(-1)^{2}-(-4)$; (6)$-3^{2}÷(-2)^{3}×|-1\frac {1}{3}|×6+(-2)^{4}$.
(1)$4×(-\frac {3}{2})^{2}-5÷\frac {1}{2}×(-2)$; (2)$-3^{2}÷3-\frac {2}{3}×12$;
(3)$(-\frac {1}{2})^{2}×2^{3}-(-1)^{3}×6$; (4)$(-2)^{2}+(4-7)÷\frac {3}{2}-|-1|$;
(5)$-2^{2}÷(-4)-3×(-1)^{2}-(-4)$; (6)$-3^{2}÷(-2)^{3}×|-1\frac {1}{3}|×6+(-2)^{4}$.
答案：
(1)29
(2)-11
(3)8
(4)1
(5)2
(6)25
(1)29
(2)-11
(3)8
(4)1
(5)2
(6)25
2. 用合适的方法计算下列各式:
(1)$-6×(-\frac {15}{17})+14×(-\frac {15}{17})-9×(-\frac {15}{17})$; (2)$7×2.6+7×1.5-4.1×8$;
(3)$25×\frac {3}{4}-(-25)×\frac {1}{2}+25÷(-4)$; (4)$(-\frac {5}{8})×(-4)^{2}-0.25×(-5)×(-4)^{3}$.
(1)$-6×(-\frac {15}{17})+14×(-\frac {15}{17})-9×(-\frac {15}{17})$; (2)$7×2.6+7×1.5-4.1×8$;
(3)$25×\frac {3}{4}-(-25)×\frac {1}{2}+25÷(-4)$; (4)$(-\frac {5}{8})×(-4)^{2}-0.25×(-5)×(-4)^{3}$.
答案：
(1)$\frac {15}{17}$
(2)-4.1
(3)25
(4)-90
(1)$\frac {15}{17}$
(2)-4.1
(3)25
(4)-90
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