小数除法计算题500 道(口算 300 200道)含答案 一.口算题(共50小题) 1.直接写出下面各题的得数. 4.80.8= 7.54.5= 0.7515= 3.50.4= 100.01= 102.05= 0.61.5= 40.25= 1.36+2.87+3.64= 1.80.40.25= 2.直接写出得数. 2.10.7= 5.30.53=0.10.01= 0.2540= 6.55.6= 1.260.6= 0.546= 3.直接写得数 30.22= 0.010.5= 0.728= 4.80.06= 6.4+3.6= 101.55=1.258= 4.口算. 0.90.03= 7.22= 0.052= 0.7411= 0.2540.254= 3.13.1= 1.32+81.32+8= 7.240= 6.250.87+0.13= 0.42.725= 5.直接写得数. 6.30.3= 1.80.5= 25.1+4.9= 2.50.54= 6.直接写出得数. 6.40.2= 0.90.89= 1.07+8.3= 3.610= 1001.5= 8.1+9= 4.50.2= 113.9= 7.直接写得数. 5.60.8= 6.825.2= 2.50.04= 10.5+0.5= 9.150.3= 17.20.86= 1.80.1= 12.50.80= 8.直接写得数 1.4100= 2.8010= 2.4100= 0.331000= 906= 0.025100= 90100= 0.32+1.98= 14.3+5.7= 999+9= 9.直接写得数.100.01= 0.22+0.8= 102.05= 40.25= 019.8= 0.20.05= 1.36+3.64= 0.40.25= 10.直接写得数 0.250.5= 0.320.04= 1.254= 1.60.4= 0.546= 5.67= 11.直接写得数. 5.0910= 12.50.8= 0.50.25= 45.61= 32.10.2= 0.256= 0.40.5= 0.540.9= 10.20.01= 12.50.8= 12.口算 1.80.03=752.5= 0.225.4= 3.6+4.4= 105.2= 3.40.2= 7.86= 13.直接写出得数 3.60.3= 6.37= 5.6100= 0.254= 0.5628= 360.9= 0.64+0.8= 0.723= 1.220= 6.120.5=2.950.2= 14.口算 3.42= 2.70.3= 0.426= 4.122= 6.30.9= 1.53+2.4= 4.80.5= 6.480= 400.41= 30.99= 104.1= 4.60.5= 15.直接写得数. 0.255= 0.720.9= 3.145100= 7.23.6= 150= 12.44.1= 0.01+0.99= 7.67.6= 1.254= 5002.5= 16.直接写得数 0.355= 0.32= 0.30.2= 0.70.9= 2.45=4.90= 20.455= 17.口算我最棒. 0.641.6= 1.40.5= 0.720.9= 10.98.9= 2.7+7.2=01.5= 2.70.3= 240.3= 4.3+2.7= 2000.07= 0.254.9= 40.8= 18.直接写得数 0.810= 25+8= 1871000= 058= 2379= 257+0= 00.008= 0.001100= 6.08051000= 245= 19.直接写得数. 0.639= 5.41.45= 04.65= 3.50.7= 10.25= 40.5= 0.10.05= 3.30.1= 2.70.9 0.360.12= 0.142= 9.66= 20.直接写得数. 8.44= 3.60.2= 0.7290= 1.10.8= 0.56+4.44= 1.2558= 2.9+3.7+2.1= 7.68+2.48= 0.40.25= 21.请你直接写出得数 4.80.8= 7.50.45= 5.7+3.3= 10.25= 6.20.621= 0.751.5= 0.24= 0.214= 1.260= 5+3.20.8= 22.直接写出得数. 0.720.9= 23.7+2.63= 4.80.4= 0.52= 6.55.6= 10.25= 80.8= 104= 0.40.8= 0.480.8= 0.354= 0.30.15= 23.直接写出得数 1.20.4= 40.5=0.724= 05.32= 3.6+1.8= 10.73= 0.240.6= 6.41.6= 0.12580= 0.50.8= 13.20.6= 24.直接写得数. 2.50.5= 0.420.6= 3.50.01= 0.540.6= 0.80.35= 0.254= 12.50.8= 0.250= 03.68= 0.30.2= 25.直接写出得数.0.560.7= 0.6+0.65= 3.91.3= 120.03= 5.20.13= 991.01= 13.52.87.2= 250.32125= 26.口算 3.61.2= 8.19= 4.80.6= 1.258= 990.9= 250.05= 880.008= 12.5= 27.直接写得数. 0.640.32= 0.71.2= 7.2(0.89)= 400.25= 04.8= 2.92.9= 0.30.6= 0.0750= 1000.07= 22.11= 28.口算 0.020.1= 124.3= 360.01= 0.80.125= 2.3+0.8= 0.360.49= 29.口算. 3.61.2= 4.44= 4.80.4= 10.25= 30.直接写得数. 6.48= 9.80.14= 4.816= 0.639= 8.729= 0.999.9= 5.50.11= 13.86.9= 31.直接写出得数. 0.568= 0.0710= 31.9= 1.20.1= 510.3= 4.3+15.37= 2.910.02 12.13.9 60.58 32.直接写出得数. 3.63= 7.86= 9.99= 56.77= 4.84= 3.913= 3.612= 8.127= 0.042= 0.884= 1.255= 7.50.05= 33.口算 10.25= 0.786= 2.424= 6.60.6= 50.5= 340.2= 0.87=80.6= 700.12= 34.直接算出得数. 2.12= 3.8+1.02= 7.50.4= 2x0.7x= 108= 0.80.6= 3.20.5= 9.60.06= 3.570.7= 4.5+0.76= 35.直接写出得数. 22.44= 0.254= 0.217= 5.67= 1.25= 423= 6.120.6= 0.546= 38.55= 240.8= 36.直接写出得数. 1.60.4= 7.28= 4.20.01= 23.61.8= 4.60.46=5.41.8= 021.3= 37.口算 1.23= 0.486= 4.623= 6.84= 0.7212= 0.724= 9.66= 5.213= 12.55= 0.125= 38.直接写得数. 56100= 1.290.29= 0.56100= 5.35+2.5= 0.625100= 52.1= 359+402= 18.67= 8.0710= 3.5+0.9= 1.2+0.08= 4(2514)= 7.340= 3.31+1.2= 254254= 0.25+0.2+0.75= 39.口算 0.420.6= 50.6= 2.40.24= 1.252.38= 7.8+1.2= 100.1= 0.10.1= 2.52.50.4= 40.直接写出得数. 109.9= 0.67+0.3= 8.9100= 2.54= 816= 0.960= 1.042= 9.17= 1.58= 0.3939= 0.258= 0.05300= 0.459= 7.29= 05.8= 480.25= 41.口算.2.42= 480.6= 0.240.2= 4.86= 2.40.2= 4.80.6= 9.60.3= 963= 42.直接写出得数 165= 224= 48100= 12.63= 6.066= 3570= 955= 1.34= 12.60.6= 1.86= 43.直接写的数 0.750.5= 1.60.4= 73.5= 16.80.4= 2.80.28= 0.50.25= 44.口算下面各题. 5.7410= 4.20.07= 0.164= 0.40.8= 1.25= 0.642= 0.560.7= 0.6+0.65= 3.91.3= 45.计算. 12.84= 31.55= 39.64= 97.86= 11.73= 29.42= 83.55= 95.24= 67.82= 46.口算: 0.968= 0.080.01= 0.20.05= 0.360.18= 5.11.7= 0.540.6= 4.80.24= 100.92= 0.945= 2.542.54= 47.直接写出得数. 2.54= 100.1= 2.80.4= 4.50.15= 7.20.9= 1.56= 150.5= 1.20.03=1.33= 48.直接写出得数. 0.3+5.7= 10.6= 3.3+5.6= 0.25+5.75= 5.3+50.7= 0.40.35= 10.04= 8+50.28= 0.90.7=109.9= 8.6100= 148.3100= 49.直接写出得数. 3.61.2= 0.720.9= 2.613= 4.80.4= 4.44= 0.786= 7.20.4= 10.25= 7.10.4= 4.50.15= 10.07= 0.420.7= 50.直接写得数 0.29100= 51000= 19+019= 423(100+23)= 170100= 320100= 902613= 0.561001000= 0.261000= 2499+24= 3825+1225= 5001001000= 二.竖式计算(共50 小题) 1.竖式计算. 0.510.5= 985.6= 20.41.7=验算: 2.用竖式计算(需验算,除不尽的保留两位小数) 1.0920.42=2101.4= 8.90.56 3.列竖式计算. 69.023.4 26.80.35 46.83.4(保留一位小数) 4.列竖式计算. 2.0525 0.130.17(商精确到百分位) 4.20.284.21.32(得数保留三位小数) 5.用竖式计算. 117.30.46 240.37 40.32l.68. 6.竖式计算 2.10.7= 70.35= 7.24= 7.用竖式计算并验算. 2.7624= 12.60.28= 8.用竖式计算. 220.515=(用乘法验算) 2.641.09=(得数保留两位小数) 6.30.125= 0.841.65= 9.列竖式计算.(后两题得数保留两位小数)33.656 8.960.28 7.120.22 4.1314. 10.竖式计算. 12.44= 45.90.6= 510.3= 52.812= 75.60.18= 9.60.32= 11.用竖式计算 132.5 54.50.16 0.680.95(保留两位小数) 2.050.16(验算) 78.611=(商用循环小数表示) 6.210.03. 12.竖式计算,带 *的要验算. 1.250.25= 78.611=(商用循环小数示) 5.637.8数保留两位小数) 28.280.4= *0.3035= 13.列竖式计算(带的保留两位小数)1.573.9 0.580.24 70.733(商用循环小数表示) 14.竖式计算(得数保留 位小数)带的验算64.81.8 86.69 0.653.84 15.竖式计算.(带* 的要验算) 9.411= *14412= 14.211= 16.竖式计算. 75.60.18 25.60.032 2.781.8 5.636.1(得数保留两位小数) 103.3(用循环小数表示) 17.竖式计算,按要求保留商的近似值. 307 (保留两位小数) 60.93.2(保留一位小数) 259.9(保留整数) 18.用竖式计算(1)6.210.03= (2)10.845= (3)8.540.7= (4)72.90.9= 19.竖式计算.(第、题验算) 50.966.5 9.253.7= 1574 6.724.2= 20.用竖式计算 (1)1.250.25= (2)8.40.56= (3)8.540.7=(验算) (4)78.611=(商用循环小数表示 21.用竖式计算.4.50.18= 2.3462.3=验算: 70.33.6= 5.062.2= 22.用竖式计算(带 得数保留两位小数)2.60.25 29.90.46 *4.651.3. 23.列竖式计算(除不尽的保留两位小数) 24.60.16;13.96; 0.3251.5; 6.240.8; 18.34; 19.26. 24.用竖式计算,并指出哪些是循环小数. 7.050.94 1.713.8 4.830.7 5.79 38.22.7 2.1618 1.80.25 3.72.2. 25.用竖式计算 (1)3.90.26 (2)9.353.4(得数保留一位小数) (3)0.170.11(商用循环小数表示) (4)0.1680.7 (5)4.0518(得数保留两位小数) (6)4.685.4=(商用循环小数表示) 26.用竖式计算21.4515; 49.048; 217.634; 11.736; 1.6926; 54.8127. 27.将下列式子的得数保留两位小数 25.320.15 1.031.2 1.079.2 9.450.32 13.510.13 17.960.36. 28.列竖式计算.(第三小题得数保留两位小数,第五小题请写出验算过程. 47.045.6=3.282.7= 0.7641.2 52.920.27= 81.28= 15.3612= 29.列竖式计算: 0.1950.133.60.8 76.760.76 62.4 7.0850.65 9.720.27. 30.竖式计算. (1)0.380.23 (2)5.793.6 (3)4.60.25 (4)624 (5)52.9575 (6)3.017 (7)4.9511 (8)84.0131(用乘法验算) (9)0.64619 (10)4.70.59. 31.计算下面各题,并用乘法验算 (1)15.612 (2)32816 (3)1.3527 (4)0.64619. 32.用竖式计算下列各题.(除不尽的保留两位小数,后面两道题要验算) 45.151.5= 52.651.3= 15.752.1= 8.42+0.6=0.4360.2= 9.253.7= 33.列竖式计算 6.64 43.529 18.927 1.3515 37.56 28.611 20.424 3.6452. 34.竖式计算 0.44832= 14.3+6.7= 3.80.26= 11.328.95= 35.用竖式计算 1.261.8= 645.04= 43.50.29=验算 5.636.1(得数保留两位小数) 27.82.5=验算 9.80.75= 36.笔算 5.024.8= 1.35320= 260.13= 482.3(得数保留两位小数) 37.用竖式计算,加号的要验算.0.7560.18= 0.350.48= 6.025.94= 38.用竖式计算(有的要验算) 96.642 7.7995 6.30.42 70.35 0.140.08 428. 39.用竖式计算. 7.875= 2.552.5= 2.51.04= 40.列竖式计算 3.510.8 80.9326.7(精确十分位) 1.421.1 (商用循环小数表示) 41.计算下面各题,除不尽的用循环小数表示商 43.812 0.120.25 70.35 11.629 131130.133 1912 5.60.07. 42.竖式计算 30.645 4.060.58 54.60.91. 43.列竖式计算. 0.580.08=(结果保留两位小数) 0.540.018= 13.63=(商用循环小数表示) 44.列竖式计算,并验算前两个,第三个保留两位小数. 95.228= 46.80.13= 5.637.8= 45.竖式 0.732.15 7.381.6 5.9527.6(得数保留两位小数) 46.用竖式计算. 3.3818 30.92.7 5.9527.6(得数保留两位小数) 47.列竖式计算. 4.8323= 3.091.5= 0.140.08=(验算) 48.竖式计算.705.6= 227.80.34= 7.5250.38= 49.用竖式计算下面各题,除不尽的保留两位小数 8.650.25 1.812 7.21.1. 50.用竖式计算. 7.021.3 29.839.5 0.543.6 小数除法计算题(口算300 200道)答案 一.口算题(共50小题) 1.【解答】解: 4.80.8=6 7.54.5=3 0.7515=0.05 3.50.4=1.4 100.01=1000 102.05=7.95 0.61.5=0.9 40.25=16 1.36+2.87+3.64=7.87 1.80.40.25=0.18 2.【解答】解: 2.10.7=3 25=0.4 10.2=5 78=0.875 5.30.53=10 0.10.01=10 0.2540=10 6.55.6=0.9 1.260.6=2.1 0.546=0.09 3.【解答】解30.22=15.1 0.010.5=0.02 0.728=0.09 4.80.06=80 6.4+3.6=10 101.55=8.451.258=10 4.【解答】解: 0.90.03=30 7.22=5.2 0.052=0.1 0.7411=8.14 0.2540.254=16 3.13.1=1 1.32+81.32+8=16 7.240=0.18 6.250.87+0.13=5.51 0.42.725=27 5.【解答】解:6.30.3=21 1.80.5=0.9 25.1+4.9=30 2.50.54=5 6.【解答】解: 6.40.2=32 0.90.89=0.01 1.07+8.3=9.37 3.610=0.36 1001.5=150 8.1+9=17.1 4.50.2=0.9 113.9=7.1 7.【解答】解: 5.60.8=7 6.825.2=1.62 2.50.04=0.1 10.5+0.5=1 9.150.3=30.5 17.20.86=20 1.80.1=18 12.50.80=0 8.【解答】解:1.4100=140 2.8010=0.28 2.4100=0.024 0.331000=330 906=15 0.025100=2.5 90100=0.9 0.32+1.98=2.3 14.3+5.7=20 999+9=900 9.【解答】解: 100.01=1000 0.22+0.8=1.02 102.05=7.95 40.25=16 019.8=0 0.20.05=0.01 1.36+3.64=5 0.40.25=0.1 10.【解答】 解:0.250.5=0.5 0.320.04=8 1.254=5 1.60.4=4 0.546=0.09 5.67=0.8 11.【解答】 10=0.50912.5 0.8=100.50.25=2 45.61=45.6 32.1 0.2=6.420.256=1.5 0.40.5=0.2 0.54 0.9=0.610.2 0.01=102012.50.8=10 12.【解答】解: 45=0.8 1.80.03=60 752.5=30 0.225.4=5.08 3.6+4.4=8 105.2=4.8 3.40.2=0.68 7.86=1.3 13.【解答】 3.60.3=126.37=0.9 5.6100=560 0.254=1 0.5628=0.02 360.9=40 0.64+0.8=1.44 0.723=2.16 1.220=2475=1.4 6.120.5=12.24 2.950.2=2.9 14.【解答】 3.42=1.72.70.3=9 0.426=0.07 4.122=8.24 6.30.9=7 1.53+2.4=3.93 4.80.5=2.4 6.480=0.08 400.41=16.4 30.99=278.1 104.1=41 4.60.5=9.2 15.【解答】 0.255=0.050.720.9=0.8 3.145100=314.5 7.23.6=2 150=0.02 12.44.1=3 0.01+0.99=1 7.67.6=1 1.254=5 5002.5=50 16.【解答】 0.355=0.070.32=0.6 0.30.2=1.5 0.70.9=0.63 2.45=1.24.90=0 20.455=4.5 17.【解答】 0.641.6=0.41.40.5=0.7 0.720.9=0.8 10.98.9=2 2.7+7.2=9.9 01.5=0 2.70.3=0.81 240.3=80 4.3+2.7=7 2000.07=14 0.254.9=1.225 40.8=5 18.【解答】 0.810=0.825+8=33 1871000=0.187 058=0 2379=226 257+0=257 00.008=0 0.001100=0.1 6.08051000=6080.5 245=120 19.【解答】 0.639=0.075.41.453.72 04.65=0 3.50.7=5 10.25=4 40.5=2 0.10.05=2 3.30.1=33 2.70.9=3 0.360.12=3 0.142=0.07 9.66=1.6 8.44=2.13.60.2=18 0.7290=0.008 1.10.8=0.88 0.56+4.44=5 1.2558=50 2.9+3.7+2.1=8.7 7.68+2.48=80 0.40.25=0.1 21.【解答】 4.80.8=67.50.45=7.05 5.7+3.3=9 10.25=4 6.20.621=9 0.751.5=0.5 0.24=0.05 0.214=0.84 1.260=72 5+3.20.8=9 22.【解答】 0.720.9=0.823.7+2.63=26.33 4.80.4=12 0.52=0.25 6.55.6=0.9 10.25=4 80.8=10 104=2.5 0.40.8=0.32 0.480.8=0.6 0.354=1.4 0.30.15=2 23.【解答】 1.20.4=328=0.25 40.5=8 0.724=0.18 05.32=0 3.6+1.8=5.4 10.73=0.27 0.240.6=0.4 6.41.6=4 0.12580=10 0.50.8=0.4 13.20.6=22 24.【解答】 2.50.5=50.420.6=0.7 3.50.01=350 0.540.6=0.9 0.80.35=0.45 0.254=1 12.50.8=10 0.250=10 03.68=0 0.30.2=0.06 25.【解答】 0.560.7=0.80.6+0.65=1.25 3.91.3=3 120.03=400 5.20.13=40 991.01=99.99 13.52.87.2=3.5 250.32125=1000 26.【解答】 3.61.2=38.19=0.9 4.80.6=8 1.258=10 990.9=110250.05=500 880.008=11000 12.5=0.4 27.【解答】 0.640.32=20.71.2=0.84 7.2(0.89)=1 400.25=10 04.8=0 2.92.9=1 0.30.6=0.18 0.0750=3.5 1000.07=7 22.11=22.1 28.【解答】 解:0.020.1=0.002 124.3=7.7 360.01=3600 0.80.125=0.1 2.3+0.8=3.1 0.360.49=0.1 29.【解答】 解:3.61.2=3 4.44=1.1 4.80.4=12 10.25=4 30.【解答】 6.48=0.89.80.14=70 4.816=0.3 0.639=0.07 8.729=0.3 0.999.9=0.1 5.50.11=50 13.86.9=2 31.【解答】 0.568=0.070.0710=0.7 31.9=1.1 1.20.1=0.12 510.3=170 4.3+15.37=19.67 2.910.0230 12.13.93 60.5810 32.【解答】 3.63=1.27.86=1.3 9.99=1.1 56.77=8.1 4.84=1.23.913=0.3 3.612=0.3 8.127=0.3 0.042=0.02 0.884=0.22 1.255=0.25 7.50.05=150 33.【解答】 10.25=40.786=0.13 2.424=0.1 6.60.6=11 50.5=10 340.2=170 0.87=5.6 80.6=4.8 700.12=8.4 34.【解答】 2.12=1.053.8+1.02=4.82 7.50.4=3 2x0.7x=1.3x 108=1.25 0.80.6=0.48 3.20.5=1.6 9.60.06=160 3.570.7=5.1 4.5+0.76=5.26 35.【解答】 22.44=5.60.254=1 0.217=0.03 5.67=0.8 1.25=6 423=14 6.120.6=10.2 0.546=0.09 38.55=7.7 240.8=30 36.【解答】 1.60.4=47.28=0.9 4.20.01=420 23.61.8=0 45=0.8 4.60.46=10 5.41.8=3 021.3=0 37.【解答】 1.23=0.40.486=0.08 4.623=0.2 6.84=1.7 0.7212=0.06 0.724=0.18 9.66=1.6 5.213=0.4 12.55=2.5 0.125=0.024 38.【解答】 56100=0.561.290.29=1 0.56100=56 5.35+2.5=7.85 0.625100=62.5 52.1=2.9 359+402=761 18.67=11.6 8.0710=80.7 3.5+0.9=4.4 1.2+0.08=1.28 4(2514)=1400 7.340=0 3.31+1.2=4.51 254254=16 0.25+0.2+0.75=1.2 0.420.6=0.750.6=3 2.40.24=10 1.252.38=23 7.8+1.2=9 100.1=100 0.10.1=0.01 2.52.50.4=1.5 40.【解答】 109.9=0.10.67+0.3=0.97 8.9100=890 2.54=10 816=0.5 0.960=54 1.042=0.52 9.17=1.3 1.58=12 0.3939=0.01 0.258=0.03125 0.05300=15 0.459=0.05 7.29=0.8 05.8=0 480.25=8 41.【解答】 2.42=1.2480.6=80 0.240.2=1.2 4.86=0.8 2.40.2=12 4.80.6=8 9.60.3=32 963=32 42.【解答】 165=3.2224=5.5 48100=0.48 12.63=4.2 6.066=1.01 3570=0.5 955=19 1.34=5.2 12.60.6=21 1.86=0.3 43.【解答】 0.750.5=1.51.60.4=4 73.5=2 16.80.4=42 2.80.28=10 0.50.25=2 44.【解答】 5.7410=0.5744.20.07=60 0.164=0.64 0.40.8=0.5 1.25=6 0.642=0.32 0.560.7=0.8 0.6+0.65=1.25 3.91.3=3 45.【解答】 解:(1)12.84=3.2(2)31.55=6.3(3)39.64=9.9 (4)97.86=16.3(5)11.73=3.9(6)29.42=14.7(7)83.55=16.7 (8)95.24=23.8(9)67.82=33.946. 【解答】 解:口算: (1)0.96 8=0.12 (2)0.08 0.01=8 0.05=4(4)0.36 0.18=2 (5)5.11.7=3 (6)0.54 0.6=0.9 45=0.02(10)2.54 2.54=16 47.【解答】 2.54=10100.1=100 2.80.4=7 4.50.15=30 7.20.9=8 1.56=9 150.5=30 52=2.5 1.20.03=40 1.33=3.9 48.【解答】 0.3+5.7=610.6=0.4 3.3+5.6=8.9 0.25+5.75=6 5.3+50.7=56 0.40.35=0.05 10.04=0.96 8+50.28=58.28 0.90.7=0.2 109.9=0.1 8.6100=860 148.3100=1.483 49.【解答】 3.61.2=30.720.9=0.8 2.613=0.2 4.80.4=12 4.44=1.1 0.786=0.13 7.20.4=18 10.25=4 7.10.4=2.84 4.50.15=30 10.07=0.93 0.420.7=0.6 50.【解答】 100=0.002951000=0.005 19+019=19 423(100+23)=300 170100=17000 320100=3.2 902613=51 0.56 1000=0.0560.261000=260 24 99+24=240038 25=05001001000=5000 二.竖式计算题(共50小题) 1.【解答】解:0.510.5=1.02 985.6=15 20.41.7=12 2.【解答】解:1.0920.42=2.6 2101.4=150 8.90.5615.89 3.【解答】解:69.023.4=20.3 26.80.35=9.38 46.83.413.8 4.【解答】解:2.0525=0.082 0.130.170.76 4.20.28=15 4.21.323.182 5.【解答】解:117.30.46=255 240.37=8.88 40.32l.68=24 6.【解答】解:2.10.7=3 70.35=20 7.24=1.8 7.【解答】解:2.7624=66.24 12.60.28=45 8.【解答】解:220.515=14.7 2.641.092.88 6.30.125=50.4 0.841.65=1.386 9.【解答】解:33.656=0.6 8.960.28=32 7.120.223.36 4.13140.3010.【解答】 (1)12.44=3.1(2)45.90.6=76.5(3)510.3=170(4)52.812=4.4(5)75.60.18=420(6)9.60.32=30 11.【解答】 解:132.5=5.2 54.50.16=340.625 0.680.950.72 2.050.16=0.328 78.611=7.1(商用循环小数表示) 6.210.03=207 12【解答】解:1.250.25=5 78.611=7.1 5.637.80.72 28.280.4=70.7 0.3035=0.0606 13.【解答】 解:1.573.90.40 0.580.240.14 70.733=2.1 14.【解答】 解:64.81.8=36 86.691.3; 0.653.842.5 15. 【解答】 解:9.411=0.8 *14412=12 14.211=1.2 16.【解答】 解:75.60.18=420 25.60.032=800 2.781.8=5.004 5.636.10.92103.33. 17.【解答】 解:3074.29 60.93.219.0 259.93 18.【解答】解:(1)6.210.03=207(2)10.845=0.24(3)8.540.7=12.2(4) 72.90.9=81 19.【解答】 50.966.5=7.849.253.7=2.51574=0.226.72 4.2=1.6 20.【解答】 解:(1)1.250.25=5(2)8.40.56=15(3)8.540.7=12.2(4) 78.611=7.1 21.【解答】 解:4.50.18=0.81 2.3462.3=1.02 70.33.6=253.08 5.062.2=2.3 22.【解答】 解:2.60.25=0.65 29.90.46=65 *4.651.33.58 23.【解答】 解:24.60.16=153.7513.962.320.3251.50.22 6.240.8=7.818.34=4.57519.26=3.2 24.【解答】 解:7.050.94=7.5 1.713.8=0.45 4.83O.7=6.9 5.79=0.6 38.22.7=14.4 2.1618=0.121.80.25=7.2 3.72.2=1.6 25.【解答】 (1)3.90.26=15(2)9.353.42.8(3)0.170.111.(4)0.1680.7=0.24(5)4.05180.23(6)4.685.4 26.【解答】解:21.4515=1.43 49.048=6.13 217.634=6.4 11.736=0.325 1.6926=0.65 54.8127=2.03 27.【解答】 25.320.15=168.801.031.20.861.079.20.129.450.3229.5313.510.13103.9217.960.3649.89 28.【解答】 解:47.045.6=8.4 3.282.7=8.856