五年级上册速算比赛题.doc

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1、1.5×4=0.12×3＝0.25×4＝1.25×8＝3.6÷2＝0.8÷4＝10.5÷5＝0.35×2＝0.56÷4＝0.4×0.7＝0.64÷8＝0.23×3＝6.3÷7＝3.5÷0.5＝0.48÷6＝0.77÷7＝0.48÷4＝0.5×4＝1.1×5＝3.5×2＝4.2÷2＝7.2÷8＝0.4×8＝0.5×0.2＝2.5×4=0.13×4=4.2×1000=5.4÷10=0.44÷4=3.6÷3=O.75×0.2=8.5×100=3.2÷100=0.18×0.3=1.2÷3=0.49÷7=O.04×25=0.84÷4=1000×0.756=0.

2、5×100=3×0.5＝0.7×4＝2.1×3＝5.2×4＝1.1×8＝9×0.8＝1.5×2＝0.2×5＝0.7×0.8＝2.5×0.4＝2.3×0.3＝0.05×2＝1.7×0.5＝1.25×0.8＝2.7÷9＝7.8×10=0.6×100=3.71×10=4.5×1000＝0.92×100=6÷12＝0.8×7=0.24×0.2=3.5×0.1=0.2×0.4=0.7×8＝1.5×6＝1.3×0.07＝10.3×2＝0.7×0.7＝1.1×10＝0.6×0.9=1.2×0.4=3.4×0.3=5×0.6=0.03×0.5=4.5×2=1.6×0

3、.3=0.23×3=5.1×2=7.1×3=9×0.3=1.5×6=14.17÷100=0.71×2=7.13÷10=1÷100=0.08×6=0.43÷10=0.25×4=278.6÷1000=1.4×0.5=53.4÷100=1.5×0.3=1.25×0.8=1.2×0.4=0.03×0.5=1.6×0.3=0.23×3=5.1×2=