小学数学五年级上册简便计算练习题.doc

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1、用简便方法计算0.25×0.280.125×3.2×2.535×40.23.5×9.93.5×99+3.53.5×101-3.53.5×9.9+3.5×0.13.5×2.7+35×0.733.5×2.7-3.5×0.73.29×0.25×40.125×8.82.5×2.4          0.35×1.25×2×0.8      32.4×0.93.6×10228.6×101－28.6      0.86×15.7－0.86×14.7       2.4×102  （2.5－0.25）×0.4      9.16×1.5－0.5×9.16      3.

2、6－3.6×0.57.6×0.8＋0.2×7.6         0.85×199     0.25×8.5×4  0.25×360.125×3.2×2.535×40.23.72×3.5＋6.28×3.54.8×7.8＋78×0.52(1.25－0.125)×81