小数乘除法竖式计算.doc

0.3288= 3.513= 7.217= 2325= 3.6414= 37.828= 60050= 420.16= 840.25= 0.360.9= 2.43= 200.5= 0.86= 10000.09= 1.3527= 580.32= 1.0852= 8.50.54= 5.622.4= 0.280.16= 1.060.82= 0.060.75= 0.412.01= 0.630.12= 3.52.01 1.456.5+0.556.5 6.1299+6.12= 5.9101-5.9=8（ ）=0.8 25.8（ ）=0.258 452( )=45.2 70( )=0.7800.9( )=80.09360( )=0.3618.8=( )平方千米6.541.04=1.260.84=0.5220.18=337.5=100.8=0.60.015=0.5320.4=0.050.025=0.210.012=3.64.8=8.010.9=0.510.85=6.30.42=25.263=0.4561.5=16.43+3.6=21.5-20.83=5.7+4.33=20.1-6.9=0.65+19.5=5.20.17（保两）0.293.18（保两）4.482.8+1.535.4-9.6（2.65-1.05）6.3【（0.9+1.8）4.5】以下简便运算12.5320.2529.4+1.72+3.565.17-1.8-3.213.75-（3.75-6.48）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+2.770.31212=420.16=840.25=580.32=1.0852=540.47=4203.5=9.31001000=28710.33=50-16.66=60.73=3.820.45=3.14.05=0.5220.18=7.540.26=91.20.024=1、用竖式计算0.3961.2= 0.7560.36= 7.1522=90.753.3=3.680.25=16.90.13=1.553.9=3.70.016=13.760.8= 5.20.6 8.41.3 =6.42.5= 4.484.4= 5.2515=35.44.2= 0.0420.54=0.760.32 =0.250.046=2.523.4= 1.0825=0.120.50.16（保留两位小数） 3.259.04= （用除法验算）4.80.25 0.1251.4 10.7512.5= （用乘法验算）2.50.7= （保留三位小数）10.13.3= （商用循环小数表示）0.430.28= 6.450.73= 4.60.6=8.90.05= 3.080.43= 1.526.7=5.2229= 18.723.6= 13.953.1=2、脱式计算（能简算的要简算）2.57.14 =16.129916.12=5.20.90.9= 7.2899+7.28=4.3500.2=642.640.5=2 615.715.724= (2.275 0.625)0.28=3.94+34.30.2=1.2(9.62.4)4.8=8.91.14.7=2.75.43.9=3.69.85-5.6=8.053.4+7.6=6.584.50.9= 2.80.5+1.58=4.85 + 0.35 1.4=8.7 17.4 - 8.7 7.4= (1.250.125)8=324.90.9= 4.84.80.5=4.8100.1= 56.59956.5= 7.0910.80.87.09=12.50.42.58= 0.873.16+4.64= 9.5101= 0.68 （5.2 -3.5） 1.25= 213.0.8257= 40.5 0.81 0.18= 4.8 （15 2.4）= 6.81+6.8199= 0.2518540= 4.40.83.40.8= (9.37+937+937+937) 25= 42.1.1.1.75=2.376.3+2.373.7= 2.51.250.32= 3.810.1=2.5(3.80.04=) 7.69101= 3.810.1 =0.2539+0.25= 0.12572= 460.33+540.33=(85.27) 1.25= 6.81+6.8199= 0.2518540=6.80.750.5= 3.750.1252.75= 1.53+23.47.2=9.599= 13.50.98= 12.58.8 = 列竖式计算，得数保留一位小数。1.21.4 0.378.4 3.142.8列竖式计算，得数保留两位小数。0.851.12 0.865.4 0.152.34列竖式计算，得数保留一位小数。4014 26.3731 45.538列竖式计算，得数保留一位小数。156035 4.82.3 1.553.9列竖式计算，得数保留一位小数。7.22.1 3.877 146.413列竖式计算，得数保留一位小数。5.636.1 2.840.03 0.3820.13列竖式计算，得数保留两位小数。26.3731 3242 2.840.03列竖式计算，得数保留两位小数。4.823 0.3820.13 4.24.5二、用竖式计算。（36%）2.523.4= 1.0855= 0.120.44=0.250.046= 6.030.25= 0.242.15=26.5559= 2.931.837= 3.56816=11718= 9.481.36= 36.918=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(6.755.89) 5.171.83.2 13.75(6.483.75)3.687.562.68 7.85-（2.340.15） 35.61.815.67.213.354.682.65-5.32 73.81.6413.85.362、脱式计算（能简算的要简算）。0.1250.25847.40.28+0.282.64.80.9+0.48（40.4）2.52、脱式计算（能简算的要简算）0.125320.781013.265.732.60.07乘法：例1：2.86 9.23 240.4 1.63 1.374.50.5 0.67 13.22 0.1253340.21 0.8511 390.4 370.080.152.3 1.16.7 2.13.5 0.432.62.050.9 12.31.1 0.782.4 1.53.2例2：150.4 6.52 120.5 0.450.18 0.26.50.240.15 6.50.25 0.60.12 0.041.3 2.20.030.160.15 3.780.4 1.20.415混合：0.250.06 0.1250.4 0.640.75 14.50.28除法：例1: 10.322 12.84 37.89 10.322.4 3.252.55.461.3 0.4650.15 0.7840.56例2：4.86 30.33 1.7525 9.44 655211.20.05 90.18 1.820 70.56 7.