1、第 1 页(共 43 页)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 5.633.9 4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
2、算结果小数部分超过两位的,保留两位小数) 第 2 页(共 43 页)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用竖式计算第 3 页(共 43 页)365.5 183.06 3.45210.280.25 1500.12 0.871.50.40.076 1.50.062 6.50.0412竖式计算0.945.3= 0.912.6= 4
3、.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=第 4 页(共 43 页)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
4、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)第 5 页(共 43 页)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
5、.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竖式计算第 6 页(共 43 页)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
6、= 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)第 7 页(共 43 页)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 0.2
7、54 4.210 5.3100 2.56 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=第 8 页(共 43 页)0.850= 2.45= 0.90.52= 10.24.5=38竖式计算,带*的要验算*4.230.028 3
8、60.56 31.524.50.80.56 *0.631.05 1.83.6739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=第 9 页(共 43 页)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=3.74
9、100= 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)第 10 页(共 43 页)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
10、= 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 11 页(共 43 页)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= 22.871
11、8.65=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=第 12 页(共 43 页)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 5.633.9 8直接写出得数
12、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=第 13 页(共 43 页)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2.91.8 4.580.37 0.82.5(得数保留一位小数) 5.451.7
13、2 (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3.40.25 6.5 2.4 0.0350.6 1.250.024第 14 页(共 43 页)15用竖式计算2.973.5= 6.050.83= 0.784.5= 3.363.67=16用竖式计算365.5 183.06 3.45210.280.25 1500.12 0.871.50.40.076 1.50.062 6.50.0417竖式计算4.571.8 0.1250.8 3.750.249.378.5 2.073.6 3.351.6
14、第 15 页(共 43 页)18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=第 16
15、 页(共 43 页)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=第 17 页(共 43 页)27列竖式计算0.6412
16、.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= 第 18 页(共 43 页)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
17、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 0.540.19第 19 页(共 43 页)37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.
18、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 4.60.25第 20 页(共 43 页)42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
19、)第 21 页(共 43 页)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)第 22 页(共 43 页)0.4010.3= 0.450.96= 0.170.71=
20、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 23 页(共 43 页)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=0.008 1.80.4=0.72 60.25=1.5 1.250.8=130.98=2.02 0.90.01=90 3.90.01=0.039 990.25=24.752 【解答】解:(1)2.41.5=3.6 (2)0.468.74.0 ( 3)2.24 1.84.03 3
21、 【解答】解:3.351.75.70 5.633.921.96 4 【解答】解:2.973.5=10.395 6.050.83=5.0215 0.784.5=3.513.363.67=12.3312 5 【解答】解:6.20.3=1.86 2.50.8=2 0.065=0.30.1625=4 52.1=10.5 048.76=06 【解答】解:6.020.352.11 8.743.8=2.3 0.591.40.42 第 24 页(共 43 页)7 【解答】解:2.91.8=5.22 4.580.37=1.6946 0.82.5=2.05.451.729.37 8 【解答】解:1.80.85=1
22、.53 7.62.19=5.41 5018.75=31.25 9 【解答】解:4.681.2=5.616 1.582.5=3.95 10 【解答】解:1.35270=368.5 6.48.05=51.52 11 【解答】解:(1)365.5=198; (2)183.06=55.08; (3)3.45 21=72.45; (4)0.28 0.25=0.07; (5)150 0.12=18; (6)0.871.5=1.305; (7)0.40.076=0.0304; (8)第 25 页(共 43 页)1.50.062=0.093; (9)6.50.04=0.26 12 【解答】解:(1)0.945
23、.3=4.982; (2)0.912.6=2.366; (3)4.060.753.05 ; (4)8.43 1.5=12.645; (5)0.253.2=0.8; (6)7.80.9 7.0 13 【解答】解:0.254=1 1.258=10 8.26.90=0 0.218=3.66.29100=629 0.02500=10 3.42=6.8 0.260.5=0.1314 【解答】解:0.54.4=2.2 801.6=50 5.50.11=50 0.065=0.350.40.8=1.6 9.9+10.1=20 1.250.8=1 0.080.1=0.840.15=3.85 1.75+0.35=
24、1015 【解答】解:3=9.42 5=15.7 53.14=15.7 0.57=3.592=81 6232=27 41.5=7.85 34.60.5=69.216 【解答】解:2.46.7 16.1 3.50.51.8 17 【解答】解:第 26 页(共 43 页)0.825=2 04.23=0 0.57+0.43=12.40.2=0.48 0.02500=10 2.810=288.29100=829 2.50.4=1 4.871.7=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=0.0425.5
25、10=552.60.5=1.3 20 【解答】解:(1)2.75 3.1=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:0.360.150.05 1.450.12=0.174 0.861.40.1 6.50.39=2.535 22 【 解答】解:第 27 页(共 43 页)80.12=0.96 1.93.5=6.65 2.31.29=2.9670.4010.3=0.1203 0.450.96=0.4320.170.710.12 23 【解答】解:700.01=0.7 2.51
26、510=25.15 1.10.4=0.44 100.3=10.36.50.2=1.3 0.10.01=0.001 0.870.6=0.27 1.73=5.124 【解答】解:0.380.230.1 5.793.620.8 4.60.251.2 25 【解答】解:3.60.25=0.9 9.81.64=8.16 3.1300=93026 【解答】解:0.70.5=0.35 3.62=7.2 0.41.7=0.68 4.56=270.36+9=9.36 5.7+3=8.7 6.62=13.2 0.13.1=0.3127 【解答】解:第 28 页(共 43 页)0.31.1=0.33 5.79+2.
27、31+4.21=12.31 0.254=1 1.20.4=31.50.6=0.9 1.590.3=5.3 0.5101=50.5 6.55=1.5108.880.12=1 0.641.61.5=0.628 【解答】解:0.60.7=0.42 0.85=4 1.10.4=0.442.340=0 0.051.6=0.08 0.027=0.1429 【解答】解:0.320.8=0.256 1.364.8=6.528 17.30.06=1.038 30 【解答】解:1.450.12=0.174 3.080.28=0.8624 13.526.7=360.453.150.351.1 31 【解答】 解:9
28、.370=07.3100=730289+7289=27210.04=0.964884=16 32 【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 第 29 页(共 43 页)4.210=42 5.3100=530 2.56=15 2.24=8.8 1.64=6.4 1.258=1034 【解答】解:0.380.25=0.095 0.1215=1.8 8.50.39=3.3150.871.51.31 35 【解答】解:14.53+5.67=20.2 7.26.45=0.751.052.8=2.94
29、验算:62.9 1.7=37 验算: 36 【解答】解:0.52=1 0.254=1 12.58=100 0.1258=170.7=10 10.1258=0 1.2532=80 0.2556=1437 【解答】解:0.20.4=0.08 8.2+1.8=10 6.450.01=0.0645 2.50.4=10.850=40 2.45=12 0.90.52=0.28 10.24.5=45.938 【解答】解:*4.230.028=0.11844第 30 页(共 43 页)360.56=20.16 31.524.5=771.75 0.80.56=0.448 *0.631.05=0.66151.83.67=6.606 39 【解答】解:35.40.8=28.32 7.631.2=9.156 0.081.14=0.0912 3.172.88.88; 0.35.61.754.30.74 40 【解答】解:24.612=2.05 4.321.2=3.6 210.15=14041 【解答】解: