.PAGE.計算訓(xùn)練〔一〕1、直接寫出得數(shù)?！?分〕0.32×5=1.8÷0.3=3.2-0.1=0.27÷0.03=1.8×20=0.01÷0.1=6.5×10=80×0.3=18×0.01=2.5-2.5÷5=0÷4.61=0.03×2.3=2、用豎式計算：〔6分〕0.37×2.4＝1.55÷3.8≈〔保存一位小數(shù)〕3、遞等式計算，能簡便的用簡便方法計算。〔18分〕5.5×8.2＋1.8××0.89×44.8×0.988.8×1.257.65÷÷5.2×3.21、直接寫出得數(shù)?！?分〕0.4×5=4.2÷0.2=4.2-1.6=21.7÷0.07=1.6×7=25.25÷5=1.25×8=60×0.9=0.8×0.1=0÷7.05=0.4×2.5=1.7＋3.3×0.2=2、用豎式計算：〔6分〕56.5×0.24＝93.6÷0.052＝3、遞等式計算，能簡便的用簡便方法計算?！?8分〕2.35×4.64＋5.36×2.3512.5×1.36××10.14.4×0.2525.2÷÷15－1.451、直接寫出得數(shù)。〔6分〕1.25×8=3.6÷10=6.3＋0.37=2.6÷0.02=0.11×5=4.8÷4=0.25×4=1.12×0.3=0.8×0.5=0÷7.05=1.5×30=3.5＋6.5×20=2、用豎式計算：〔6分〕新課標(biāo)第一網(wǎng)0.59×0.027＝6.72÷6.4＝3、遞等式計算，能簡便的用簡便方法計算?！?8分〕1.87×3.05＋8.13×3.051.25×0.45×0.89.8×3.70.44×2.52.25×÷3.2－4.71、直接寫出得數(shù)。〔6分〕1.25×8=3.6÷10=6.3＋0.37=2.6÷0.02=0.11×5=4.8÷4=0.25×4=1.12×0.3=0.8×0.5=0÷7.05=1.5×30=3.5＋6.5×20=2、用豎式計算：〔6分〕1.24×0.15＝0.39÷7.8＝3、遞等式計算，能簡便的用簡便方法計算?！?8分〕3.26×10.1－0.1××9.8×8102×4.82.4×2.5〔27.8－15.6〕×÷57＋4.841、直接寫出得數(shù)?！?分〕1.25×8=2.8÷100=6.3＋0.37=2.6÷0.02=0.13×5=9.6÷6=0.25×4=2.34×0.2=0.6×1.5=0÷7.05=2.3×20=4.3＋5.7÷1.9=2、用豎式計算：〔6分〕1.03×5.9＝3.8÷4.5≈〔得數(shù)保存兩位小數(shù)〕3、遞等式計算，能簡便的用簡便方法計算?！?8分〕1.39×6.1＋3.9×1.390.25×1.6×0.410.1×1.92.4×1.250.48×÷0.48＋0.521、直接寫出得數(shù)。〔6分〕1.25×8=1÷0.125=6.13×0=3.9÷0.65=2.4×5=10÷2.5=0.37×0.4=2.34×0.2=2.5×4=0÷21.35=1.6×0.5=4.3＋5.7÷1.9=2、用豎式計算：〔6分〕0.86×1.2＝5.63÷6.1≈〔得數(shù)保存兩位小數(shù)〕3、遞等式計算，能簡便的用簡便方法計算?！?8分〕1.2×2.5＋0.8××0.25×4102×0.458.8×1.257.06×÷1.4＋2.630.8÷[14-(9.85+1.07)][60-(9.5+28.9)]÷0.182.881÷0.43-0.24×3.520×[(2.44-1.8)÷0.4+0.15]28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×30.8×[15.5-(3.21+5.79)](31.8+3.2×4)÷531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷236.25÷4.25×9.95180－705×624÷2.4－2.5×0.8(4121+2389)÷7671×15-974469×12+149219.4×6.1×2.35.67×0.2-0.6218.1×0.92+3.930.4×0.7×0.250.78+5.436+14.8×5÷4+1÷49.9x5÷6+5÷610.3÷4x8÷9-1÷314.31x5÷6-5÷616.5÷9x18-14x2÷720.3x2÷9+1÷335.95÷〔64-45〕36.178-145÷5×6+427.2÷0.8-1.2×56.5×〔4.8-1.2×4〕28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×3〔31.8+3.2×4〕÷531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷2194－64.8÷1.8×0.936.72÷4.25×9.95180－705×624÷2.4－2.5×0.8(4121+2389)