小学五年级小数计算题161

小学五年级小数计算题1、用竖式计算0.396÷1.2=0.756÷0.36=15.6×13=0.18×15=3.06×36=0.025×14=0.04×0.12＝5.76×3＝3.84×2.6≈（保留一位小数）7.15×22=90.75÷3.3=3.68×0.25=16.9÷0.13=3.7×0.016=1.55÷3.9=5.2×0.6=4.48×0.4=0.042×0.54=13.76×0.8=8.4×1.3=6.4×0.5=5.25×5=35.4×4.2=0.76×0.32=0.25×0.046=1.08×25=2.52×3.4=0.12×1.6＝0.125×1.4≈4.8×0.25＝（保留两位小数）2.5÷0.7=10.1÷3.3=0.43×0.28=（保留三位小数）（商用循环小数）10.75÷12.5=3.25×9.04=（用乘法验算）（用除法验算）0.43×0.28=4.6×0.6=6.45×0.73=3.08×0.43=18.72÷3.6=8.9×0.05=1.5×26.7=5.22÷29=13.95÷3.1=7.15×22=90.75÷3.3=3.68×0.25=2、脱式计算（能简算的要简算）2.5×7.1×416.12×99＋16.125.2×0.9＋0.97.28×99+7.2864－2.64×0.54.3×50×0.226×15.7＋15.7×24(2.275＋0.625)×0.283.94+34.3×0.21.2×(9.6÷2.4)÷4.88.9×1.1×4.72.7×5.4×3.93.6×9.85-5.468.05×3.4+7.62.8×0.5+1.586.58×4.5×0.932＋4.9－0.9(1.25－0.125)×84.8－4.8×0.556.5×99＋56.58.74.8×100.17.09×10.8－0.8×7.094.85+0.35÷1.4×17.4-8.7×7.412.5×0.4×2.5×89.5×1010.87×3.16+4.640.68÷（5.2-3.5）×1.25÷0.81×0.1840.52．13.4.8×（15÷2.4）×0.×82576.81+6.81×990.25×185×404.4×0.8－3.4×0.8(9.37+9．37+9．37+9．37)×2．54．2.×1.＋1.×1.752.37×6.3+2.37×3.73.8×10.12.5×1.25×0.322.5×(3.8×0.04)0.25×39+0.257.69×1010.125×7246×0.33+54×0.330.25×185×40(8×5.27)×1.253.94+34.3×0.26.81+6.81×993.75÷0.125–2.7513.5×0.986.8×0.75÷0.51.53+23.4÷7.29.5×9912.5×8.86.81+6.81×990.25×185×402.08×(9.6÷2.4)÷4.8二、解方程：54-X=247X=495.6x+4.4x=5.213+A=28.52.4X=26.47.5x－3x=185×1.3-2x=5.56×5+2X=4424x+6x=63.65×1.3-2x=5.514X-8X=1224x+6x=63.620X-50=5032-22X=1028+6X=883X+5X=4810X×（5+1）=6099X+X=100X+3=18X-6=1256-2X=204y+2=6x+32=763x+6=1816+8x=404x-3×9=292x-8=8x-6×5=4212x-9x=98x-3x=105x+5=72x+3=106x+18=4856x-50x=3078-5x=285x=1532y-29=389x-9=805x+5=15100-20x=2076y-75=155x-25x=604x-20=023y-23=2380y+20=10053x-90=1612y-12=242x+9x=1180+5x=1007x-8=665x+35=10019y+y=4079y+y=8025-5x=1542x+28