新人教版小学数学五年级上册小数的简便计算专项练习.doc

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1、用简便方法计算:23×10.243×10.526×10.734×9.221×9.956×9.635×19.2+35×20.864×56.5+64×43.53.5×19+3.50.64×99+0.6426×19.8-26×9.858×66.5-58×16.58.9×21-8.923.5×101-23.525×9.8×0.4125×9.2×0.820.025×32×1.25125×0.5625×1.212.5×322.5×2827-3.7-17.356.8-32.5-18.528.9-12.3-8.954.6-23.

2、7-14.678.1-23.9+14.9123.5-57.8+14.30.25×0.7×42.5×0.9×23.25×0.5×61.25×1.3×0.812.7×0.4×502.25×0.12×628×10.445×10.877×9.52