小数乘法计算题.doc

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1、列竖式计算12.4×72.3×122.05×63.13×530.86×73.3×1612.8×420.19×406.7×0.32.4×6.25.4×1.070.45×0.63.7×4.60.48×1.50.29×0.070.056×0.151.8×230.37×0.41.06×250.082×0.147×0.860.6×0.3927×0.430.055×0.060.39×2.90.58×0.083.7×2000.18×8.454.5×0.0020.072×0.150.8×0.9（保留一位小数）1.7×0.45（保留二位小数）简便

2、计算0.034×0.5×0.6101×0.454.75×99+4.752.73×99保留一位小数1.2×1.40.37×8.43.14×3.9保留两位小数0.86×1.22.34×0.15    1.05×0.26简便计算4.8×0.250.78×980.5×2.33×81.5×1050.3×2.5×0.41.2×2.5+0.8×2.5计算（怎样简便就怎样算）2.02×8.51.25+4.6+0.751.6×7.5×1.2556×1.253.4×7×1.50.8×0.25×0.4×12.554.9×0.384.05+37.851

3、.25×0.7×0.89.8×256.1×3.6+3.6×3.9    2.96×40