小数加减乘除及混合运算(共4页).doc

精选优质文档-倾情为你奉上一、小数加减乘除及混合运算（含简便运算）1.计算下面各题，能简算的用简便方法算，并写出简算过程。1.63.91.25 35.720.0470.323.610.1 0.1386.40.1210.25（1.283.2） 4.872.34+48.70.2666.250.256 68.04（0.213.6）0.4860.013.99 19.752.5-3.5517.52.3-7.52.3 1.251140.890254 8.935.78.933.38.93一、直接写出得数：（10分）0.273 = 7.20.6 = 1.258 = 0.830.27 =