小数乘法计算600道(含答案).doc

小数乘法计算600道第一部分一计算题（共50小题）1直接写出得数 0.40.02=1.80.4=60.25=1.250.8=30.98=0.90.01=3.90.01=990.25=2用竖式计算下面各题2.41.5= 0.468.7=（保留一位小数） 2.241.8=（保留两位小数）3用竖式计算（得数保留两位小数）3.351.7 5.633.94用竖式计算2.973.5= 6.050.83= 0.784.5= 3.363.67= 5直接写得数 6.20.3=2.50.8=0.065=0.1625=52.1=048.76=6用竖式计算（计算结果小数部分超过两位的，保留两位小数）6.020.35 0.591.4 7按要求算一算2.91.8 4.580.37 0.82.5（得数保留一位小数） 5.451.72（得数保留两位小数）8列竖式计算：1.80.85= 7.62.19= 5018.75= 9用竖式计算4.681.2= 1.582.5=10竖式计算1.35270 6.48.0511用竖式计算365.5183.063.45210.280.251500.120.871.50.40.0761.50.0626.50.0412竖式计算0.945.3= 0.912.6= 4.060.75（保留两位小数） 8.431.5= 0.253.2= 7.80.9（保留一位小数）13直接写出得数0.254=1.258=8.26.90=0.218=6.29100=0.02500=3.42=0.260.5=14我会口算0.54.4=801.6=5.50.11=0.065=50.40.8=9.9+10.1=1.250.8=0.080.1=40.15=1.75+0.35=15口算3=5=53.14=0.57=92=6232=41.5=34.60.5=16用竖式计算，得数保留一位小数2.46.7 3.50.517直接写出得数0.825=04.23=0.57+0.43=2.40.2=0.02500=2.810=8.29100=2.50.4=4.871.7=18列竖式计算0.6412.5= 2.80.17=19直接写出得数0.70.9= 0.140.3= 5.510= 2.60.5=20用竖式计算2.753.1= 3.185.45= 0.762.18（得数保留两位小数） 0.091.7（精确到十分位）21列竖式计算0.360.15=（得数保留两位小数） 1.450.12=0.861.4=（得数保留一位小数） 6.50.39=22用竖式计算80.12=1.93.5=2.31.29=（验算）0.4010.3=0.450.96=0.170.71=（得数保留两位小数）23直接写得数700.01=2.51510=1.10.4=100.3=6.50.2=0.10.01=0.870.6=1.73=24竖式计算（得数保留一位小数）0.380.23 5.793.6 4.60.2525竖式计算3.60.25= 9.81.64= 3.1300=26口算0.70.5=3.62=0.41.7=4.56=0.36+9=5.7+3=6.62=0.13.1=27直接写出计算结果 0.31.1=5.79+2.31+4.21=0.254=1.20.4=1.50.6=1.590.3=0.5101=6.55=108.880.12=0.641.61.5=28直接写得数0.60.7=0.85=1.10.4=2.340=0.051.6=0.027=29用竖式计算0.320.8= 1.364.8= 17.30.06=30用竖式计算1.450.12= 3.080.28= 13.526.7= 3.150.35（保留一位小数）31口算9.370= 7.3100= 289+7289= 10.04= 4884=32列竖式计算：30.50.76 0.540.1933直接写得数：2.53 3.062 0.254 4.210 5.31002.56 2.24 1.64 1.25834竖式计算0.380.25= 0.1215= 8.50.39=（验算） 0.871.5（保留二位小数）35用竖式计算并验算14.53+5.67 7.26.45 1.052.8 62.91.736口算：0.52=0.254=12.58=0.1258=70.7=10.1258=1.2532=0.2556=37口算0.20.4=8.2+1.8=6.450.01=2.50.4=0.850=2.45=0.90.52=10.24.5=38竖式计算，带*的要验算*4.230.028360.5631.524.50.80.56*0.631.051.83.6739竖式计算35.40.8 7.631.2 0.081.14 3.172.8（得数保留两位小数） 0.35.6（得数保留一位小数） 54.30.7（得数保留整数）40列竖式计算24.612 4.321.2 210.1541直接写出得数07=2.6+0.4=150.01=21.221=1.8a+0.2a=0.40.4=0.120.04=0.8100=2.540=0.720.8=42口算0.12100=6.210=5001000=12万+3万=8a+a=6.210=3.74100=23.6100=3.2510=43竖式计算0.1812 3.2615 3.117 1.254140.5 8.415 0.459 1.5350.0213 4.2816 2.611844直接写出得数 401.2=250.4=63=7.8+0.9=0.56+4.44=2.40.5=1.2580=3.60.06=120.4=82=45列竖式计算2.03418 4.063.8 （积保留两位小数）46计算438.2= 80.352= 35.65= 6.73=47口算9.50.2=3.20.5=0.82.5=4.40.4=350.4=4.850=4.80.25=8.85=1.40.5=12.54=48竖式计算0.4327= 1.852.6=验算： 0.372.4（得数保留一位小数） 7.020.56（得数保留两位小数）49直接写出得数0.70.9=2.60.5=0.140.3=5.510=1.70.03=1.80.04=0.126=4.85=50竖式计算5.61.8= 0.250.046（保留两位小数） 35000.96=第二部分一计算题（共50小题）1列竖式计算：1.80.36=35.37+28.63=19.98.75=1.060.48=18.9+28.65=22.8718.65=2用竖式计算下面各题2.41.5= 0.468.7=（保留一位小数） 2.241.8=（保留两位小数）3直接写得数0.102100=4.2+3=0.230.5=0.2570.4=3.60.6=42=0.10.01=20.5+1=4用竖式计算（计算结果小数部分超过两位的，保留两位小数）6.020.35 8.743.8 0.591.45列竖式计算：1.80.85=7.62.19= 5018.75=6用竖式计算4.80.25 9.31.3 9.80.5 2.12.157用竖式计算（得数保留两位小数）3.351.7 5.633.98直接写出得数0.120.4=3.8100=56.560.56 1.6+3.04=19.280.8=2.80.7=0.531000=1082.54=9列竖式计算3.481.05（计算并验算） 1.553.8（得数保留两位小数）10竖式计算0.6418=25.8102=40.70.25=13.452.6=（保留整数） 4.8658（保留整数） 10.2342（保留一位小数）11直接写得数 6.20.3=2.50.8=0.065=0.1625=52.1=048.76=12按要求算一算2.91.84.580.37 0.82.5（得数保留一位小数）5.451.72（得数保留两位小数）13用竖式计算840.25=0.5564=0.475.8=6.060.32=0.0750.07=3.79.77=14列竖式计算3.40.256.52.4 0.0350.6 1.250.02415用竖式计算2.973.5= 6.050.83= 0.784.5= 3.363.67=16用竖式计算365.5183.063.45210.280.251500.120.871.50.40.0761.50.0626.50.0417竖式计算4.571.8 0.1250.8 3.750.249.378.5 2.073.6 3.351.618竖式计算0.945.3= 0.912.6= 4.060.75（保留两位小数）8.431.5= 0.253.2= 7.80.9（保留一位小数）19我会口算0.54.4=801.6=5.50.11=0.065=50.40.8=9.9+10.1=1.250.8=0.080.1=40.15=1.75+0.35=20列竖式计算，带*号的要验算25.78+3.12= 13.89= *82.67= *5.73+6.7= 21直接写出得数0.125100=60100=910=0.32+4.68=15.7+4.3=254=100.8=799+7=14.6+0.34=30.5+2.5=247.542.46=26+19+74+81=22用竖式计算4.681.2= 1.582.5= 23用竖式计算，得数保留一位小数2.46.7 3.50.5 24竖式计算7.60.82= 3.250.31= 7.50.59=（验算）25口算3=5=53.14=0.57=92=6232=41.5=34.60.5=26直接写出得数0.825=04.23=0.57+0.43=2.40.2=0.02500=2.810=8.29100=2.50.4=4.871.7=27列竖式计算0.6412.5= 2.80.17= 28列竖式计算4.817 1.8825 2.40.37 0.895.3 29列竖式计算（得数保留两位小数）2.375105 5.164.3 0.450.20630列竖式计算0.040.12 4.258.8 3.840.2531竖式计算3.60.25= 9.81.64= 3.1300=32用竖式计算2.753.1= 3.185.45= 0.762.18（得数保留两位小数） 0.091.7（精确到十分位）33列竖式计算0.360.15=（得数保留两位小数） 1.450.12=0.861.4=（得数保留一位小数） 6.50.39=34用竖式计算80.12=1.93.5=2.31.29=（验算）0.4010.3=0.450.96=0.170.71=（得数保留两位小数）35直接写出得数0.70.9= 0.140.3= 5.510= 2.60.5= 36列竖式计算：30.50.76 0.540.1937竖式计算1.35270 6.48.0538直接写得数700.01=2.51510=1.10.4=100.3=6.50.2=0.10.01=0.870.6=1.73=39列竖式计算24.612 4.321.2 210.1540直接写出得数07=2.6+0.4=150.01=21.221=1.8a+0.2a=0.40.4=0.120.04=0.8100=2.540=0.720.8=41竖式计算（得数保留一位小数）0.380.23 5.793.6 4.60.2542用竖式计算0.320.8= 1.364.8= 17.30.06=43竖式计算（*验算）8.40.15= 16.516.3= 9004.58= *56.7+0.33=44口算0.70.5=3.62=0.41.7=4.56=0.36+9=5.7+3=6.62=0.13.1=45用竖式计算1.450.12= 3.080.28= 13.526.7= 3.150.35（得数保留一位小数）46竖式计算0.380.25= 0.1215= 8.50.39=（验算） 0.871.5 （得数保留二位小数） 47直接写出计算结果 0.31.1=5.79+2.31+4.21=0.254=1.20.4=1.50.6=1.590.3=0.5101=6.55=108.880.12=0.641.61.5=48竖式计算0.380.25 1500.12 0.871.91.282.3 2.070.24 0.171.0549用竖式计算80.12=（验算） 1.93.5=（验算）0.4010.3= 0.450.96= 0.170.71=50直接写出得数0.130.2=10.9=0.322=0.85=0.90.1=3.11+2.22=0.52=8m6m=1.620.62=5.9+4.4=0.053100=12.5+12.57=第一部分参考答案与试题解析一计算题（共50小题）1【解答】解：0.40.02=0.0081.80.4=0.7260.25=1.51.250.8=130.98=2.020.90.01=903.90.01=0.039990.25=24.752【解答】解：（1）2.41.5=3.6（2）0.468.74.0（3）2.241.84.033【解答】解：3.351.75.705.633.921.964【解答】解：2.973.5=10.3956.050.83=5.02150.784.5=3.513.363.67=12.33125【解答】解：6.20.3=1.862.50.8=20.065=0.30.1625=452.1=10.5048.76=06【解答】解：6.020.352.118.743.8=2.30.591.40.427【解答】解：2.91.8=5.224.580.37=1.69460.82.5=2.05.451.729.378【解答】解：1.80.85=1.537.62.19=5.415018.75=31.259【解答】解：4.681.2=5.6161.582.5=3.9510【解答】解：1.35270=368.5 6.48.05=51.5211【解答】解：（1）365.5=198；（2）183.06=55.08； （3）3.4521=72.45；（4）0.280.25=0.07； （5）1500.12=18； （6）0.871.5=1.305； （7）0.40.076=0.0304； （8）1.50.062=0.093； （9）6.50.04=0.2612【解答】解：（1）0.945.3=4.982；（2）0.912.6=2.366；（3）4.060.753.05；（4）8.431.5=12.645；（5）0.253.2=0.8；（6）7.80.97.013【解答】解：0.254=11.258=108.26.90=00.218=3.66.29100=6290.02500=103.42=6.80.260.5=0.1314【解答】解：0.54.4=2.2801.6=505.50.11=500.065=0.350.40.8=1.69.9+10.1=201.250.8=10.080.1=0.840.15=3.851.75+0.35=1015【解答】解：3=9.425=15.753.14=15.70.57=3.592=816232=2741.5=7.8534.60.5=69.216【解答】解：2.46.716.13.50.51.817【解答】解：0.825=204.23=00.57+0.43=12.40.2=0.480.02500=102.810=288.29100=8292.50.4=14.871.7=3.1718【解答】解：（1）0.6412.5=8（2）2.80.17=0.47619【解答】解：0.70.9=0.630.140.3=0.0425.510=552.60.5=1.320【解答】解：（1）2.753.1=8.525（2）3.185.45=17.331（3）0.762.181.66（得数保留两位小数）（4）0.091.70.2（精确到十分位）21【解答】解：0.360.150.051.450.12=0.1740.861.40.16.50.39=2.53522【解答】解：80.12=0.961.93.5=6.652.31.29=2.9670.4010.3=0.12030.450.96=0.4320.170.710.1223【解答】解：700.01=0.72.51510=25.151.10.4=0.44100.3=10.36.50.2=1.30.10.01=0.0010.870.6=0.271.73=5.124【解答】解：0.380.230.15.793.620.84.60.251.225【解答】解：3.60.25=0.99.81.64=8.163.1300=93026【解答】解：0.70.5=0.353.62=7.20.41.7=0.684.56=270.36+9=9.365.7+3=8.76.62=13.20.13.1=0.3127【解答】解：0.31.1=0.335.79+2.31+4.21=12.310.254=11.20.4=31.50.6=0.91.590.3=5.30.5101=50.56.55=1.5108.880.12=10.641.61.5=0.628【解答】解：0.60.7=0.420.85=41.10.4=0.442.340=00.051.6=0.080.027=0.1429【解答】解：0.320.8=0.2561.364.8=6.52817.30.06=1.03830【解答】解：1.450.12=0.1743.080.28=0.862413.526.7=360.453.150.351.131【解答】解：9.370=07.3100=730289+7289=27210.04=0.964884=1632【解答】解：30.50.76=23.18 0.540.19=0.102633【解答】解：2.53=7.5 3.062=6.12 0.254=1 4.210=42 5.3100=5302.56=15 2.24=8.8 1.64=6.4 1.258=1034【解答】解：0.380.25=0.0950.1215=1.88.50.39=3.315 0.871.51.3135【解答】解：14.53+5.67=20.27.26.45=0.751.052.8=2.94验算：62.91.7=37验算：36【解答】解：0.52=10.254=112.58=1000.1258=170.7=1010.1258=01.2532=800.2556=1437【解答】解：0.20.4=0.088.2+1.8=106.450.01=0.06452.50.4=10.850=402.45=120.90.52=0.2810.24.5=45.938【解答】解：*4.230.028=0.11844360.56=20.1631.524.5=771.750.80.56=0.448*0.631.05=0.66151.83.67=6.60639【解答】解：35.40.8=28.32 7.631.2=9.156 0.081.14=0.09123.172.88.88； 0.35.61.7 54.30.7440【解答】解：24.612=2.05 4.321.2=3.6 210.15=14041【解答】解：07=02.6+0.4=3150.01=0.1521.221=0.21.8a+0.2a=2a0.40.4=0.160.120.04=0.00480.8100=802.540=00.720.8=0.57642【解答】解：0.12100=126.210=625001000=0.512万+3万=15万8a+a=9a6.210=0.623.74100=37423.6100=0.2363.2510=32.543【解答】解：（1）0.1812=2.16（2）3.2615=48.9 （3）3.117=52.7（4）1.254=5（5）140.5=7（6）8.415=126 （7）0.459=4.05 （8）1.535=52.5（9）0.0213=0.26 （10）4.2816=68.48（11）2.6118=46.9844【解答】解：401.2=48250.4=1063=2167.8+0.9=8.70.56+4.44=52.40.5=1.21.2580=1003.60.06=60120.4=3082=6445【解答】解：2.03418=36.6124.063.815.4346【解答】解：438.2=152.880.352=2.81635.65=1786.73=20.147【解答】解：9.50.2=1.93.20.5=1.60.82.5=24.40.4=1.76350.4=144.850=2404.80.25=1.28.85=441.40.5=0.712.54=5048【解答】解：0.4327=11.61；1.852.6=4.81；0.372.40.9（得数保留一位小数）；7.020.563.93（得数保留两位小数）；49【解答】解：0.70.9=0.632.60.5=1.30.140.3=0.0425.510=551.70.03=0.0511.80.04=0.0720.126=0.724.85=2450【解答】解：5.61.8=10.08 0.250.0460.0135000.96=3360第二部分参考答案与试题解析一计算题（共50小题）1【解答】解：1.80.36=0.64835.37+28.63=6419.98.75=11.151.060.48=0.508818.9+28.65=47.5522.8718.65=4.222【解答】解：（1）2.41.5=3.6（2）0.468.74.0（3）2.241.84.033【解答】解：0.102100=1024.2+3=7.20.230.5=0.1150.2570.4=0.73.60.6=642=160.10.01=1020.5+1=24【解答】解：6.020.352.118.743.8=2.30.591.40.425【解答】解：1.80.85=1.537.62.19=5.415018.75=31.256【解答】解：4.80.25=1.29.31.3=12.099.80.5=4.92.12.15=4.5157【解答】解：3.351.75.705.633.921.968【解答】解：0.120.4=0.0483.8100=0.03856.560.56=101 1.6+3.04=4.6419.280.8=18.482.80.7=40.531000=5301082.54=10.89【解答】解：3.481.05=3.654验算：1.553.80.4110【解答】解：0.6418=11.5225.8102=2631.640.70.25=10.17513.452.635 4.86583910.2342429.711【解答】解：6.20.3=1.862.50.8=20.065=0.30.1625=452.1=10.5048.76=012【解答】解：2.91.8=5.224.580.37=1.69460.82.5=2.05.451.729.3713【解答】解：840.25=210.5564=35.20.475.8=2.7266.060.32=1.93920.0750.07=0.005253.79.77=36.14914【解答】解：3.40.25=0.856.52.4=15.60.0350.6=0.021 1.250.024=0.0315【解答】解：2.973.5=10.3956.050.83=5.02150.784.5=3.513.363.67=12.331216【解答】解：（1）365.5=198；（2）183.06=55.08； （3）3.4521=72.45；（4）0.280.25=0.07； （5）1500.12=18； （6）0.871.5=1.305； （7）0.40.076=0.0304； （8）1.50.062=0.093； （9）6.50.04=0.2617【解答】解：（1）4.571.8=8.226；（2）0.1250.8=0.1；（3）3.750.24=0.9；（4）9.378.5=79.645；（5）2.073.6=7.452；（6）3.351.6=5.3618【解答】解：（1）0.945.3=4.982；（2）0.912.6=2.366；（3）4.060.753.05；（4）8.431.5=12.645；（5）0.253.2=0.8；（6）7.80.97.019【解答】解：0.54.4=2.2801.6=505.50.11=500.065=0.350.40.8=1.69.9+10.1=201.250.8=10.080.1=0.840.15=3.851.75+0.35=1020【解答】解：25.78+3.12=28.913.89=124.2*82.67=5.33验算：*5.73+6.7=12.43验算：21【解答】解：0.125100=12.560100=0.6910=0.90.32+4.68=515.7+4.3=20254=100100.8=9.2799+7=70014.6+0.34=14.9430.5+2.5=33247.542.46=1426+19+74+81=20022【解答】解：4.681.2=5.6161.582.5=3.9523【解答】解：2.46.716.13.50.51.824【解答】解：（1）7.60.82=6.232；（2）3.250.31=1.0075；（3）7.50.59=4.42525【解答】解：3=9.425=15.753.14=15.70.57=3.592=816232=2741.5=7.8534.60.5=69.226【解答】解：0.825=204.23=00.57+0.43=12.40.2=0.480.02500=102.810=288.29100=8292.50.4=14.871.7=3.1727【解答】解：（1）0.6412.5=8（2）2.80.17=0.47628【解答】解：4.817=81.61.8825=472.40.37=0.8880.895.3=4.71729【解答】解：2.375105249.38 5.164.322.19 0.450.2060.0930【解答】解：0.040.12=0.0048 4.258.8=37.43.840.25=0.95231【解答】解：3.60.25=0.99.81.64=8.163.1300=93032【解答】解：（1）2.753.1=8.525（2）3.185.45=17.331（3）0.762.181.66（得数保留两位小数）（4）0.091.70.2（精确到十分位）33【解答】解：0.360.150.051.450.12=0.1740.861.40.16.50.39=2.