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第32頁(yè)

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$ \begin{aligned}解：原式&=4×6 \\ &=24 \\ \end{aligned}$

$ \begin{aligned} 解：原式&=－(\frac {1}{2}×\frac {1}{3}) \\ &=－\frac {1}{6} \\ \end{aligned}$

$ \begin{aligned} 解：原式&=－(0.5×8) \\ &=－4 \\ \end{aligned}$

$ \begin{aligned} 解：原式&=\frac {2}{3}×1 \\ &=\frac {2}{3} \\ \end{aligned}$

$ \begin{aligned}解：原式&=－(\frac {15}{4}×\frac {10}{3}) \\ &=－\frac {25}{2} \\ \end{aligned}$

$ \begin{aligned} 解：原式&=－(\frac {6}{5}×\frac {3}{2}) \\ &=－\frac {9}{5} \\ \end{aligned}$

$ \begin{aligned} 解：原式&=\frac {7}{3}×\frac {17}{14} \\ &=\frac {17}{6} \\ \end{aligned}$

$ \begin{aligned} 解：原式&=－(\frac {9}{4}×\frac {8}{15}) \\ &=－\frac {6}{5} \\ \end{aligned}$

A

D

－54

54

0

－6

12

$(－9)$

$(－8)$

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