小學(xué)五年級上數(shù)學(xué)計算題巧算和速算

..一、五年級簡便計算題12.3×4×0.2512.96－〔9.6－1.5285×10.11.2÷0.25＋1.3×4103×0.25〔4.8＋6.4÷835÷12540.5÷0.81×1.0534.5×0.03+34.5×0.97〔203.4＋72.2÷〔1.3×0.28×4.3×12.597.5÷0.39－136.72.5×10286.4÷0.24×0.254.2÷2811.16÷〔10－0.7<9.6+3.2>÷0.8〔300－94.8÷0.50.125×1612.6÷[3.5－〔9.8－8.7]3.2×5.6－11.40.648÷[〔0.4＋0.5×0.6]5.74×99＋5.748．9×1.1×4.74.75＋3.25×2.4＋7.62.7×5.4×3.93.8×1.4＋18.2÷0.73.6×9.85-5.464.8×0.258.05×3.4+7.64.7×10.26.58×4.5×0.97.63×99＋7.632.8×0.5+1.586.73＋2.56＋1.44＋3.278×5.2+3.8×3.8+3.82.37×2.5×4<6.7+6.7+6.7+6.7>×2.51.5×1029.8×25×42400÷16÷0.532×0.25×0.1252.8×3.2＋3.2×7.27.4－0.15×2.83.76×0.25－0.490.008+0.92×5－1.280.25×4.78×47.8÷〔1.3×40.65×2017.2×0.9＋0.01×7.21.2×2.5＋0.8×2.58.6×10.12.5×7.1×45.6×<12.5－8.5÷0.85>16.12×99＋16.12[<8.1－5.6>×0.9－1]×0.45.2×0.9＋0.98.25×4.08+0.75×4.08+4.084.3×50×0.24.32＋5.43＋6.6864－2.64×0.515.17－6.8－3.226×15.7＋15.7×2412.75－<2.75＋6.8><2.275＋0.625>×0.281.27＋3.9＋0.73＋16.13.94+34.3×0.212.8－4.9－5.11.2×<9.6÷2.4>÷4.86.75－〔0.9＋3.758.9×1.1×4.71.34＋1.8＋3.66＋0.22.7×5.4×3.90.96－0.28＋0.04－0.723.6×9.85-5.4612.78-<4.97+2.78>8.05×3.4+7.631.7－0.5×0.7－1.656.58×4.5×0.935.72-4.9-〔5.72+5.12.8×0.5+1.58111－3.67×2.8－3.67×7.232＋4.9－0.912.5×6.3+27×1.25+0.125÷0.014.8－4.8×0.53.1+25.78+6.9<1.25－0.125>×815.25+4.72+4.75+5.284.8×100.134.82－<4.82+15.2>56.5×99＋56.57.28+0.94+2.72+0.067.09×10.8－0.8×7.097.84+0.73—0.844.85+0.35÷1.46.3×99+6.38.7×17.4-8.7×7.415.7—4.3—5.712.5×0.4×2.5×81.6+0.4—1.6+0.40.87×3.16+4.6462.8÷2.5÷0.49.5×1017.3×990.68÷〔5.2-3.5×1.25<1.25+2.5>×840.5÷0.81×0.189.42×10—94.2×0.94.8×〔15÷2.41.8×2.48+1.52×1.8-0.52．13.×0.×82578.76+0.4×3.6×2.5+1.246.81+6.81×996.5×<10-3.7>+2.980.25×185×40［4.75+8.4÷<9.2-6.8>］×404.4×0.8－3.4×0.8×<9.37+9．37+9．37+9．37>×2．50.125×7.9×164．2.×1.＋1.×1.752.48×<7.3-5.8>+1.5×7.522.37×6.3+2.37×3.712.773-［4.5×<0.75-0.356>+9.23］2.5×1.25×0.32<6.4+0.88>÷0.8+3.2×1.253.8×10.124-［5.4+<0.63+1.29÷0.23>］2.5×<3.8×0.04>2.18+4.65+7.82+5.35+12.57.69×1013.8×10.1<25+2.5+0.25>×40.25×39+0.25<35.2×45.6+45.6×63.8+45.60.125×7212.25－3.1＋0.85－6.1746×0.33+54×0.33〔〔1.9－1.9×0.9÷〔3.8－2.8二、用豎式計算1.8+0.02=5.76×3＝2.08×7.5=0.43×0.28=0.72÷0.9=90.75÷3.31.05×2.4=4.6×0.6=0.2÷0.01=16.9÷0.131.89÷0.54=3.08×0.43=0.25×40=3.7×0.0165.61÷6.1=5.22÷29=1.25×0.8=5.2×0.66.21÷0.3=13.95÷3.1=5.5×66=6.4×0.51.3÷0.95.93×0.767.8×0.35=5.25×521.84÷0.73—2.088.4×0.25=0.042×0.5428.14÷6.73.54×130.25×0.0460.396÷1.2=20－5.6746.84×7.451.08×2515.6×13=5.4÷0.03636.72÷2.40.125×1.4≈0.025×14=5.778÷5.4=110.7÷0.5410.1÷3.3=0.04×0.12＝1.5×0.25=1.204÷0.43=3.25×9.04=6÷1.2=9.2÷2.3=3.5×0.2=7.15×2218.9÷0.54=6.45×0.73=4.8+2=1.55÷3.90.35×8.6=1.5×26.7=3.5×24=8.4×1.354÷0.36=7.218÷364.25×24=35.4×4.20.462÷1.45.24÷7.25.24÷7.22.52×3.40.756÷0.36=5.84÷0.1687.11÷3.12.5÷0.7=3.06×36=8.02×3.5=1-0.01=3.68×0.251.44÷1.8=8.9×0.05=7.6×1.05=4.48×0.45.86÷0.2416.32÷515.56÷0.834.8×0.25＝0.18×15=8÷116.5-5.6=13.76×0.8=9.58÷0.23=18.72÷3.6=2.84×0.05=10.75÷12.5=3.84×2.6≈28.56÷5.1=0.42×0.3080.76×0.324.32÷3.62.7+3.13三、速算與巧算<1>5.8+2.32+0.68+4.2<2>1999+199.9+19.99+1.999<3>12.59-3.24-5.76<4>8.1+7.8+8.2+8.4+7.9+7.7<5>18×5.5<6>8.88×1.25<7>34.7×0.25<8>238÷1.25<9>0.25×12.5×3.2<10>124.68+324.68+524.68+724.68+924.68<11>5795.5795÷5.7957×579.5<12>1990×198.9-1989×198.8<13>2.25×0.16+264×0.0225+5.2×2.25+0.225×20<14><1+0.28+0.84>×<0.28+0.84+0.66>-<1+0.28+0.84+0.66>×<0.28+0.84><15>4.82×0.59+0.41××5.9<16>0.125×0.25×32<17>16×4.5<18>0.25×1.25×22.4<19>0.9+0.99+0.999+0.9999+0.99999<20><72×357+357×28>÷<51×7×4><21>98989898×99999999÷1010101÷11111111<22>4.8×÷7.5><23><67.8+9.48>÷×30.05