小數(shù)乘除法計(jì)算題及其答案

乘法：5.6×2.9=16.243.77×1.8=6.7860.02×96=1.925.22×0.3=1.5669.99×0.02=0.19984.67×0.9=4.2035×2.44=12.21.666×6.1=10.16269.432×0.002=0.0188645.6×6.5=36.44.88×2.9=14.1525.61×4.3=24.1238.9×2.4=21.365.5×55=302.59.77×0.02=0.19541.384×5.1=7.05848.78×83=728.742.6×61=158.60.059×0.2=0.01184.268×1.7=7.255657×5.7=324.99.46×2.85=26.96117.8×6.4=113.921.5×4.9=7.352.5×0.88=2.25.555×5.2=28.8862.22×3.33=7.39267.658×85=650.9336.02×0.3=10.80656.78×8=454.24除法：85.44÷16=5.3442.84÷7=6.12101.7÷9=11.367.5÷15=4.5230.4÷6=38.421.24÷36=0.590.736÷23=0.03243.5÷12=3.62535.21÷7=5.0339.6÷24=1.656.21÷0.03=207210÷1.4=15051.3÷0.27=19091.2÷3.8=240.756÷0.18=4.20.66÷0.3=2.211.97÷1.5=7.9869.6÷2.9=2438.4÷0.8=4815÷0.06=250（循環(huán)小數(shù)的用簡(jiǎn)便方法，除不盡保留2位小數(shù)）：8.2÷0.12=68.33…0.8÷0.9=0.88…76.4÷5.4=14.148148…4.7÷3=1.566…1.25÷1.2=1.04166…32÷42=0.761904761904…14.36÷2.7=5.3185185…8.33÷6.2≈1.341.7÷0.03=56.66…2.41÷0.7=3.44285714285714…計(jì)算0.396÷1.2=0.330.756÷0.36=2.115.6×13=202.80.18×15=2.70.025×14=0.353.06×36=110.160.04×0.12＝0.00483.84×2.6≈10.0（保留一位小數(shù)）5.76×3＝17.287.15×22=157.390.75÷3.3=27.53.68×0.25=0.9216.9÷0.13=1301.55÷3.9=0.39743589743589…3.7×0.016=0.059213.76×0.8=11.0085.2×0.6=3.128.4×1.3=10.926.4×0.5=3.24.48×0.4=1.7925.25×5=26.2535.4×4.2=148.680.042×0.54=0.022680.76×0.32=0.24320.25×0.046=0.01152.52×3.4=8.5681.08×25=270.12×0.5×0.16＝0.00964.8×0.25＝1.20.125×1.4≈0.18（保留兩位小數(shù)）2.5÷0.7≈3.571（保留三位小數(shù)）10.1÷3.3=3.0606…（商用循環(huán)小數(shù)）10.75÷12.5=0.86（用乘法驗(yàn)算）3.25×9.04=29.38（用除法驗(yàn)算）3、脫式計(jì)算（能簡(jiǎn)算的要簡(jiǎn)算）2.5×7.1×416.12×99＋16.125.2×0.9＋0.9=（2.5×4）×7.1=16.12×（99+1）=（5.2+1）×0.9=10×7.1=16.12×100=6.2×0.9=71=1612=5.587.28×99+7.284.3×50×0.264－2.64×0.5=7.28×（99+1）=4.3×（50×0.2）=64-1.32=7.28×100=4.3×10=62.68=728=4326×15.7＋15.7×24(2.275＋0.625)×0.28=（26+24）×15.7=2.9×0.28=50×15.7=0.812=78.53.94+34.3×0.21.2×(9.6÷2.4)÷4.8=3.94+6.86=1.2×4÷4.8=10.8=4.8÷4.8=18.9×1.1×4.72.7×5.4×3.93.6×9.85-5.46=9.79×4.7=14.58×3.9=35.46-5.46=46.013=56.862=308.05×3.4+7.66.58×4.5×0.92.8×0.5+1.58=27.37+7.6=29.61×0.9=1.4+1.58=34.97=26.649=2.9832＋4.9－0.94.8－4.8×0.5(1.25－0.125)×8=36.9-0.9=4.8-2.4=1.25×8-0.125×8=36=2.4=10-1=94.8×100.156.5×99＋56.57.09×10.8－0.8×7.09=4.8×100+4.8×0.1=56.5×（99+1）=7.09×（10.8-0.8）=480+0.48=56.5×100=7.09×10=480.48=5650=70.94.85+0.35÷1.48.7×17.4-8.7×7.4=4.85+0.25=8.7×10=5.1=8712.5×0.4×2.5×80.87×3.16+4.649.5×101=(12.5×8)×(0.4×2.5)=2.7492+4.64=9.5×100+9.5=100×1=7.3892=950+9.5=100=959.50.68÷（5.2-3.5）×1.2540.5÷0.81×0.18=0.68÷1.7×1.25=50×0.18=0.4×1.25=9=0.54.8×（15÷2.4）6.81+6.81×990.25×185×40=4.8×6.25=6.81×(1+99)=(0.25×40)×185=30=6.81×100=10×185=681=18504.4×0.8－3.4×0.8(9.37+9．37+9．37+9．37)×2．5=(4.4-3.4)×0.8=(9.37×4)×2.5=1×0.8=9.37×(4×2.5)=0.8=9.37×10=93.72.37×6.3+2.37×3.72.5×1.25×0.32=2.37×(6.3+3.7)=2.5×1.25×0.4×0.8=2.37×10=(2.5×0.4)×(1.25×0.8)=23.7=1×1=13.8×10.12.5×(3.8×0.04)7.69×101=3.8×10+3.8×0.1=2.5×0.04×3.8=7.69×100+7.69=38.38=0.38=776.690.25×39+0.250.125×7246×0.33+54×0.33=0.25×(39+1)=0.125×8×9=(46+54)×0.33=0.25×40=1×9=100×0.33=10=9=33(8×5.27)×1.256.81+6.81×990.25×185×40=(8×1.25)×5.27=6.81×(1+99)=0.25×40×185=10×5.27=6.81×100=10×185=52.7=681=18506.8×0.75÷0.53.75÷0.125–2.751.53+23.4÷7.2=5.1÷0.5=30-2.75=1.53+3.25=10.2=27.25=4