五年级小数竖式计算

68.8÷4＝　　85.44÷16＝　　67.5÷15＝289.9÷18＝　101.7÷9＝　　243.2÷64＝　16.8÷28＝　　15.6÷24＝　　0.138÷15＝　1.35÷27＝　　　0.416÷32＝　3.64÷52＝　91.2÷3.8＝　0.756÷0.18＝　　51.3÷0.27＝　　26÷0.13＝　210÷1.4＝　　2.688÷0.56＝　10.625÷25＝　126÷45＝10÷25＝2.7÷7.5＝　　　15÷0.06＝　　25.6÷0.032＝　　14.36÷2.7≈8.33÷6.2≈1.7÷0.03≈32÷42≈1.25÷1.2≈2.41÷0.7≈4.5×0.07=6.3÷0.09=2.5×3.6=19.8÷3.3=5÷0.25=0.76÷0.4=2.36×0.22=2.8×4.58=3.57÷4.2=82.8÷36=45×2.46=3.6÷0.24=382.5÷45=6.4×5.48=13.42×4.73=9.65×8.12=7.23×1.2=6.3×12=2.14×8.3=4.9×1.12=21.98×2.31=0.24×28.37=29.13×3.14=9.88×11.21=5.5÷11=7.5÷0.5=6÷1.2=3.2÷8=7.2÷0.9=24÷1.2=12÷0.12=6.75÷0.25=12÷0.75=21÷0.7=16.9÷0.13=1.55÷3.9=3.7×0.016=5.63÷6.1=0.3÷0.15=0.5×0.12=0.6×3÷0.6×3=1.4×5=0.1×0.01=0.35×8=7.35÷7=1÷0.01=4.692÷2.3=5.5×2.02=3.14×0.68=3.07×1.5=5.26÷1.6=0.85×6.3=52.6×0.252=35÷73=4、判断。〔1〕如果两个因数的积不是小数，则这两个因数一定不是小数。〔〕〔2〕一个不等于0的数的1.02倍一定比原数大。〔〕〔3〕因为12×35=420，所以1.2×3.5=42.〔〕〔4〕在示近似数时，5.0也可以写成5。〔〕〔5〕整数乘法的交换律、结合律和分配律，对于小数乘法同样适用。〔〕〔6〕0.25×9.9=0.25×〔10-1〕=0.25×10-0.25。〔〕〔7〕4.10与4.1大小相等，表示意义也一样。〔〕〔8〕3.994准确到百分位约是4.00.〔〕〔9〕一个数〔0除外〕除以小数，商一定比这个数大。〔〕〔10〕两个数相除的商是0.9，被除数不变，除数扩大10倍，商是9.〔〕5、把以下各式中的乘积点上小数点，使等式成立。9.36×2.7=252720.89×6.43=5722752.1×1.98=10315826.15×3.4=88914.5×0.07=6.3÷0.09=2.5×3.6=19.8÷3.3=5÷0.25=0.76÷0.4=2.36×0.22=2.8×4.58=3.57÷4.2=82.8÷36=45×2.46=3.6÷0.24=382.5÷45=6.4×5.48=13.42×4.73=9.65×8.12=\7.23×1.2=6.3×12=2.14×8.3=4.9×1.12=21.98×2.31=0.24×28.37=29.13×3.14=9.88×11.21=920÷40=780÷60=960÷40=79×97=28×32＝54×25＝48×61＝23×37=46×58=326×52=45×12＝33×12=32×69=0.828÷3697.2÷247.65÷0.8512.6÷0.288.61÷2.158.75÷0.25220.3÷0.758.8÷0.2858.9÷317.67÷5.983.2÷3.297.2÷5.48.4÷2418÷4823÷1847.65÷250.98÷352.525÷2584÷56140.7÷382.8÷721.56÷2.4=1.44÷0.015=2.898÷0.18=85.44÷1642.84÷7101.7÷967.5÷15230.4÷621.24÷360.736÷2343.5÷1235.21÷739.6÷246.21÷0.0385.44÷1642.84÷7101.7÷967.5÷15230.4÷621.24÷360.736÷2343.5÷1235.21÷739.6÷246.21÷0.03210÷1.451.3÷÷÷0.180.66÷0.311.97÷÷÷0.815÷0.060.828÷3697.2÷247.65÷0.8512.6÷0.288.61÷2.158.75÷0.25220.3÷0.758.8÷0.2858.9÷317.67÷5.983.2÷3.297.2÷5.48.4÷2418÷4823÷1847.65÷250.98÷352.525÷2584÷56140.7÷382.8÷721.56÷2.4=1.44÷0.015=2.898÷0.18=85.44÷1642.84÷7101.7÷967.5÷15230.4÷621.24÷360.736÷2343.5÷1235.21÷739.6÷246.21÷0.0385.44÷1642.84÷7101.7÷967.5÷15230.4÷621.24÷360.736÷2343.5÷1235.21÷739.6÷246.21÷0.03210÷1.451.3÷0.2791.2÷3.80.756÷0.180.66÷0.311.97÷1.569.6÷2.938.4÷0.815÷0.061.44÷0.015=2.898÷0.18=1.44÷0.015=2.898÷0.18=0.328÷8=3.51÷3=7.21÷7=23÷25=3.64÷14=37.8÷28=600÷50=42×0.16=84×0.25=0.36×0.9=2.4÷3=20×0.5=0.8×6=1000×0.09=1.35÷27=58×0.32=1.08×52=8.5×0.54=5.62×2.4=0.28×0.16=1.06×0.82=0.06×0.75=0.41×2.01=0.63×0.12=3.5×2.011.26÷0.84=1.45×6.5+0.55×6.56.12×99+6.125.9×101-5.98÷〔〕=0.825.8÷〔〕=0.258452÷()=45.270÷()=0.7800.9÷()=80.09360÷()=0.366.54×1.04=0.522÷0.18=33÷7.5=10÷0.8=0.6÷0.015=0.532÷0.4=0.05÷0.025=0.21÷0.012=3.6÷4.8=8.01÷0.9=0.51÷0.85=6.3÷0.42=25.2÷63=0.456÷1.5=16.43+3.6=21.5-20.83=5.7+4.33=20.1-6.9=0.65+19.5=0.29×3.18〔保两〕4.48÷2.8+1.5÷〔〕6.3×【〔0.9+1.8〕÷4.5】以下简便运算12.5×32×13.75-〔〕3.45+7.7+16.55+1.321.63-〔8.5+9.63〕36.59-〔6.59+7.3〕7.23+6.84-0.84+2.770.312×12=42×0.16=84×0.25=58×0.32=1.08×52=54×0.47=420×3.5=9.3÷100×1000=2871÷0.33=50-16.66=6×0.73=3.82×0.45=3.1×4.05=0.522÷0.18=7.54÷0.26=91.2÷0.024=1、用竖式计算0.396÷1.2=0.756÷0.36=7.15×22=90.75÷3.3=3.68×0.25=16.9÷0.13=1.55÷3.9=3.7×0.016=13.76×0.8=5.2×0.68.4×1.3=13.95÷3.1=6.4×2.5=4.48×4.4=5.25×15=4.6×0.6=35.4×4.2=0.042×0.54=0.76×0.320.25×0.046=0.45×0.73=0.43×0.28=2.52×3.4=1.08×25=0.12×0.5×0.16＝〔保存两位小数〕3.25×9.04=〔用除法验算〕4.8×0.25＝0.125×1.4≈      10.75÷12.5=〔用乘法验算〕2.5÷0.7=〔保存三位小数〕10.1÷3.3=〔商用循环小数表示〕8.9×0.05=3.08×0.43=1.5×26.7=5.22÷29=18.72÷3.6=2.5×7.1×4=16.12×99＋16.12=5.2×0.9＋0.9=7.28×99+7.28=4.3×50×0.2=64－2.64×0.5=26×15.7＋15.7×24=(2.275＋0.625)×0.28=3.94+34.3×0.2=1.2×(9.6÷2.4)÷4.8=8.9×1.1×4.7=2.7×5.4×3.9=3.6×9.85-5.6=8.05×3.4+7.6=6.58×4.5×0.9=2.8×0.5+1.58=4.85+0.35÷1.4=8.7×17.4-8.7×7.4=(1.25－0.125)×8=32＋4.9－0.9=4.8－4.8×0.5=4.8×100.1=56.5×99＋56.5=7.09×10.8－0.8×7.09=12.5×0.4×2.5×8=0.87×3.16+4.64=2．13.×0.×8257=9.5×101=0.68÷〔5.2-3.5〕×1.25=40.5÷0.81×0.18=4.8×〔15÷2.4〕=6.81+6.81×99=0.25×185×40=4.4×0.8－3.4×0.8=(9.37+9．37+9．37+9．37)×2．5=4．2.×1.＋1.×1.75=2.37×6.3+2.37×3.7=2.5×1.25×0.32=3.8×10.1=2.5×(3.8×0.04=)7.69×101=3.8×10.1=0.25×39+0.25=0.125×72=14.7÷0.07=46×0.33+54×0.33=6.81+6.81×99=0.25×185×40=(8×5.27)×1.25=6.8×0.75÷0.5=1.53+23.4÷7.2=3.75÷0.125–2.75=13.5×0.98=12.5×8.8=9.5×99=1.2×1.4＝0.37×8.4＝3.14×2.8＝0.15×2.34＝0.85×1.12＝0.86×5.4＝40÷14＝45.5÷38＝26.37÷31＝1560÷35＝4.8÷2.3＝1.55÷3.9＝7.2÷2.1＝3.87÷7＝146.4÷13＝0.382×0.13＝5.63÷6.1＝2.84×0.03＝26.37÷31＝32÷42＝2.84×0.03＝4.8÷23＝0.382×0.13＝4.2÷4.5＝2.52×3.4=1.08×55=0.12×0.44=0.24×2.15=0.25×0.046=6.03×0.25=2.93－1.837=3.568÷16=26.55÷59=117÷18=9.48＋1.36=36.9÷18=四、单位换算〔12%〕0.24米=〔〕厘米0.09吨=〔〕千克8.54平方分米=〔〕平方厘米3.64千米=〔〕米140平方厘米=〔〕平方分米785米=〔〕千米23分米=〔〕米60克=〔〕千克2.06千克=〔〕克3元4角=〔　　〕元15厘米＝〔　　　　〕米7吨60千克=〔〕吨五、脱式计算〔能简算的要用简便方法计算〕〔24%〕15.89＋(6.75－5.89)5.17－1.8－3.213.75－(6.48＋3.75)3.68＋7.56－2.687.85-〔2.34－0.15〕35.6－1.8－15.6－7.213.35－4.68＋2.65-5.3273.8－1.64－13.8－5.365.4÷0.15=2、脱式计算〔能简算的要简算〕。0.125×0.25×8×47.4×0.28+0.28×2.623.4÷5.85=4.8×0.9+0.48　　　〔4－0.4〕×2.50.544÷0.025=2、脱式计算〔能简算的要简算〕0.125×320.78×1013.26×5.7－32.6×0.070.25×0.060.125×××0.2810.32÷212.8÷437.8÷910.32÷2.43.25÷2.55.46÷1.30.465÷0.150.784÷0.5665÷5211.2÷0.059÷÷207÷÷0.250.798÷0.389.8÷1.42.52÷2.460÷÷0.80.315÷1.531÷2513÷200.092÷2372.8÷80.315÷0.1596÷64176÷2511.4÷÷2636÷4896÷÷4.21.2×1.4＝0.37×8.4＝3.14×2.8＝0.85×1.120.86×5.4＝0.15×2.34＝40÷14＝26.37÷3145.5÷38＝1560÷35＝4.8÷2.3＝1.55÷3.9＝7.2÷2.1＝3.87÷7＝146.4÷13＝5.63÷6.12.84×0.03＝0.38×0.13＝26.37÷31＝32÷422.84×0.03＝4.8÷23＝0.382×0.13＝4.2÷4.5＝1.64＋2.35=8.65－6.31=28.448÷14=10.88÷34=0.58×250=12.5＋3.6=10－7.64=1.86×7=13.88－6.29=926×0.15=8÷500=100.2－2.2826.3＋7.93=23×7.06=44÷9〔准确到百分位〕18÷24=43.68÷26=25.3÷0.88=124.8÷0.24=0.1575÷3.15=0.612÷1.8=16.787÷0.28〔保存一位小数〕2.36×0.222.8×4.583.57÷4.245×2.4682.8÷36382.5÷456.4×5.480.756÷0.36=0.396÷1.2=27.5÷0.025=5.08×0.65〔得数保存两位小数〕9.62÷0.158〔得数保存两位小数〕14.2÷11〔商用循环小数表示〕203.5÷11=25.2÷6=34.5÷15=5.6÷4=1.8÷12=1.8÷12=7.83÷9=4.08÷8=0.54÷6=6.3÷14=72÷15=14.21÷7=24÷15=1.26÷18=43.5÷29=18.9÷27=1.35÷15=28.6÷11=20.4÷24=3.64÷52=15.6÷12=328÷16=1.35÷27=7.65÷0.85=12.6÷0.28=62.4÷2.6=0.544÷0.16=1.44÷1.8=11.7÷2.6=19.4÷12=5.98÷0.23=19.76÷5.2=10.8÷4.5=21÷1.4=8.84÷1.7=6.21÷0.03=1.89÷0.54=0.51÷0.22=7.1÷2.5=1.998÷0.54=1.28÷0.16=2.1÷0.4=2.56÷3.2=50.18÷38.6=4.68÷7.5=