口算题卡小数.pdf

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1、.1、直接写出得数.0.45×2.5＝0.8×1.25＝0.3×3.6＝0.3×0.3＝10×0.07＝0.3×1.4＝0.05×7＝0.92×0.4＝0.2×0.26＝0.14×4＝0.02×0.1＝1.2×0.3＝0.2×0.4＝8.2＋1.8＝100－35.22＝2.3×4＝2.5×0.4＝2.4×5＝0.22×4＝3.25×0＝0.9－0.52＝3.99×1＝0×3.52＝12.5×8＝8÷10=10-1.8-7.2=0.43+3.57=2.5×4×12=0.9×0.8=1.05×100=1÷0.5=0.96÷3=1.47÷0.7=5.4÷6=0.16.510=×0.56×100=3

2、.78×100=4÷0.8=3.215×100=0.8×10=4.08×100=1.1×0.2=0.6×0.8=3×0.9=2.5×0.4=3.6×0.4=12.5×8=50×0.04=80×0.3=1.1×9=0.16×5＝1.78＋2.2=9.6÷0.6=1.2×0.5-0.4=0.7÷0.01=2.5×0.4=12－3.9=1.25×8÷1.25=6.6÷0.66=3.9＋2.03＝27＋456＋73=0.3×0.3=7.2＋2.8＝0.9÷0.01＝12÷0.3=2.87÷0.7＝72.8÷0.8＝8.4÷4.2＝13.8＋9.9＝0.05×0.8＝2.56－0.37＝1.23×3＝

3、2、用竖式计算0.396÷1.2=0.756÷0.36=15.6×13=0.18×15=3.06×36=0.04×0.12＝0.025×14=5.76×3＝35.4×4.20.042×0.540.76×0.320.25×0.0462.52×3.4;..1.08×254.8×0.25＝0.125×1.4（保留两位小数）≈3.84×2.6≈（保留一位小数）;.