能简算的要简便．
0.25×9.87×4 36.7×2.1+10.8 8.45﹣0.45×0.1
0.73×102 7.8×5.6+2.3×4.4 76.3×27﹣76.3×17．
能简算的要简便．
0.25×9.87×4 36.7×2.1+10.8 8.45﹣0.45×0.1
0.73×102 7.8×5.6+2.3×4.4 76.3×27﹣76.3×17．
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