1. 计算:
(1)$-3^{2}÷3-\frac {2}{3}×12$; (2)$4×(-\frac {3}{2})^{2}-5÷\frac {1}{2}×(-2)$;
(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)$-3^{2}÷3-\frac {2}{3}×12$; (2)$4×(-\frac {3}{2})^{2}-5÷\frac {1}{2}×(-2)$;
(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)-11
(2)29
(3)8
(4)1
(5)2
(6)25
(1)-11
(2)29
(3)8
(4)1
(5)2
(6)25
2. 用合适的方法计算下列各题:
(1)$-6×(-\frac {15}{17})+14×(-\frac {15}{17})-9×(-\frac {15}{17})$; (2)$(3\frac {1}{8})^{12}×(\frac {8}{25})^{11}×(-2)^{3}$;
(3)$48\frac {24}{25}÷(-48)$; (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)$(3\frac {1}{8})^{12}×(\frac {8}{25})^{11}×(-2)^{3}$;
(3)$48\frac {24}{25}÷(-48)$; (4)$(-\frac {5}{8})×(-4)^{2}-0.25×(-5)×(-4)^{3}$.
答案:
(1)$\frac{15}{17}$
(2)-25
(3)$-\frac{51}{50}$
(4)-90
(1)$\frac{15}{17}$
(2)-25
(3)$-\frac{51}{50}$
(4)-90
查看更多完整答案,请扫码查看