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计算下面各题，怎样简便就怎样计算。
$68\times35 - 408\div24$ $47.5-(0.6 + 6.4\div0.32)$ $(167 - 172.8\div3)\times50$
$25.89+(8 - 5.89)$ $\frac{3}{5}+\frac{1}{5}+\frac{5}{7}\times\frac{7}{12}$ $(27.6 - 0.9)\div(2.5\times8)$
$\frac{5}{7}-\frac{3}{5}\times\frac{3}{14}\div60\%$ $10-(2+\frac{1}{3})\div\frac{2}{3}$ $360\div15 + 2.5\times14$
$35\times(1-\frac{3}{7})\div\frac{5}{12}$ $4560\div15 - 15\times2$ $0.04\times[21.2\div(4.5 + 0.8)]$
$20.8\times3.3 - 2050\div50$ $\frac{13}{24}+\frac{3}{8}\times\frac{7}{9}-\frac{1}{12}$ $5\div[(\frac{2}{3}+\frac{1}{5})\times\frac{1}{13}]$
$68\times35 - 408\div24$ $47.5-(0.6 + 6.4\div0.32)$ $(167 - 172.8\div3)\times50$
$25.89+(8 - 5.89)$ $\frac{3}{5}+\frac{1}{5}+\frac{5}{7}\times\frac{7}{12}$ $(27.6 - 0.9)\div(2.5\times8)$
$\frac{5}{7}-\frac{3}{5}\times\frac{3}{14}\div60\%$ $10-(2+\frac{1}{3})\div\frac{2}{3}$ $360\div15 + 2.5\times14$
$35\times(1-\frac{3}{7})\div\frac{5}{12}$ $4560\div15 - 15\times2$ $0.04\times[21.2\div(4.5 + 0.8)]$
$20.8\times3.3 - 2050\div50$ $\frac{13}{24}+\frac{3}{8}\times\frac{7}{9}-\frac{1}{12}$ $5\div[(\frac{2}{3}+\frac{1}{5})\times\frac{1}{13}]$
答案
2363 26.9 5470
28 $\frac{73}{60}$ 1.335
$\frac{1}{2}$ $\frac{13}{2}$ 59
48 274 0.16
27.64 $\frac{3}{4}$ 75
28 $\frac{73}{60}$ 1.335
$\frac{1}{2}$ $\frac{13}{2}$ 59
48 274 0.16
27.64 $\frac{3}{4}$ 75
