五年级奥数-小数的简便运算doc资料.doc

五年级奥数,小数的简便运算学习好资料专题一：小数的简便运算A卷3.22.5 0.12564 0.25641.25 0.2540.40.12510.8 42.740.252.651.713.50.17 2.535035519.9837199.81.91.998200.10.20.3.7.87.9专题一：小数的简便运算B卷2842.5 3781.251.251584 256.41.255.889581.1 4.611.5460.1526.393626.3983263.91.99.999.8999.89999.899999.82000.30.6.5.15.4 5.10.687.8（1.70.341.3）精品资料