Jess小数除法计算题道口算道竖式道含问题详解7324

1、小数除法计算题500道（口算300道+竖式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.2+5=0.25X40=0.01+0.5=13=7.2-2=3.1+3.1=7.5-4.5=102.05=1.8X0.4X0.25=1+0.2=6.55.6=0.05X2=1.32+81.32+8=4.8+0.8=10+0.01=1.36+2.87+3.64=2 .直接写出得数.2.1 +0.7=0.1+0.01=3 .直接写得数4 0.2+2=6.4+3.6=4.口算.0.9+0.03=0.25X4+0.25X4=0.75+15=0.6X1.5=78=1.260.6=0.728=10

2、-1.55=3.5X0.4=4+0.25=5.3+0.53=0.546=4.80.06=1.25X8=0.74X11=7.240=6.25-0.87+0.13=0.4X2.7X25=5.直接写得数.6.3 +0.3=1.8X0.5=25.1+4.9=2.5X0.5X4=6.直接写出得数.0.90.89=1.07+8.3=3.6+10=6.4 +0.2=4.5X0.2=11-3.9=2.5X0.04=1.8+0.1=2.4+100=90+100=1001.5=7.直接写得数.5.6+0.8=9.15+0.3=8.直接写得数1.4X100=90+6=14.3+5.7=8.1+9=6.82-5.2=

3、17.2+0.86=2.80+10=0.025义100=9X99+9=1-0.5+0.5=12.5X0.8X0=0.33X1000=0.32+1.98=写得数.10+0.01=0+19.8=0.22+0.8=0.2X0.05=10-2.05=1.36+3.64=4+0.25=0.4X0.25=10.直接写得数0.25-0.5=0.32+0.04=1.25X4=1.6+0.4=0.54+6=5.6+7=11 .直接写得数.0.5+0.25=45.6+1=0.54+0.9=10.2+0.01=32.1X0.2=12.5X0.8=5.09+10=12.5X0.8=0.25X6=0.4X0.5=12

4、.口算4+5=1.8+0.03=75+2.5=0.2X25.4=3.6+4.4=10-5.2=3.4X0.2=7.8+6=13 .直接写出得数3.6+0.3=6.3+7=5.6X100=0.25X4=0.56+28=1.2X20=14.口算3.4+2=6.3+0.9=40X0.41=360.9=75=2.7+0.3=1.53+2.4=30.9X9=0.64+0.8=6.12+0.5=0.42+6=4.8X0.5=10X4.1=0.72X3=2.9+5+0.2=4.12X2=6.4+80=4.6+0.5=15.直接写得数.0.25+5=0.72+0.9=3.145X100=7.2+3.6=1+5

5、0=12.44.1=0.01+0.99=7.67.6=1.25X4=500+2.5=16 .直接写得数0.35+5=0+7+3=17 .口算我最棒.0.64+1.6=0.3X2=2.4X5=1.4X0.5=0.3+0.2=4.9X0=0.72+0.9=0.7X0.9=2X0.45X5=10.9-8.9=0+1.5=200X0.07=25+8=257+0=24X5=5.4+1.45=4X0.5=0.36+0.12=2.7+7.2=4.3+2.7=18 .直接写得数0.8+10=237-9=6.0805X1000=19 .直接写得数.0.63+9=1+0.25=2.7+0.92.7X0.3=0.2

6、5X4.9=1871000=0X0.008=0X4.65=0.10.05=0.14+2=24+0.3=4+0.8=058=0.001义100=3.50.7=3.30.1=9.66=0.72+90=1.25X5X8=0.4X0.25=20.直接写得数.8.4+4=1.1X0.8=2.9+3.7+2.1=3.6+0.2=0.56+4.44=7.6X8+2.4X8=21.请你直接写出得数4.8+0.8=7.5-0.45=5.7+3.3=0.75+1.5=0.2+4=0.21X4=1+0.25=6.2+0.62-1=1.2X60=5+3.2+0.8=22.直接写出得数.0.72+0.9=23.7+2.

7、63=6.5-5.6=1+0.25=0.4X0.8=0.48+0.8=23.直接写出得数1.2+0.4=2+8=0+5.32=3.6+1.8=6.4+1.6=0.125X80=24.直接写得数.4.8+0.4=80.8=0.35义4=4+0.5=1-0.73=0.5X0.8=0.5+2=104=0.3+0.15=0.72+4=0.24+0.6=13.20.6=2.50.5=0.25X4=0.420.6=12.5X0.8=3.5 0.01=0.2X50=0.54+0.6=0+3.68=0.8-0.35=0.3X0.2=25.直接写出得数.0.56+0.7=0.6+0.65=3.9+1.3=5.2

8、+0.13=99X1.01=26.口算3.6+1.2=8.1+9=13.5-2.87.2=4.8+0.6=99+0.9=250.05=880.008=27 .直接写得数.0.64+0.32=0.7X1.2=7.2+(0.8X9)=28 9+2.9=0.3X0.6=0.07X50=28. 口算0.02X0.1=12-4.3=36+0.01=0.8X0.125=2.3+0.8=0.36+0.4+9=29. 口算.120.03=25X0.32X125=1.25X8=12.5=40X0.25=0+4.8=100X0.07=22.1X1=0.63+9=13.8+6.9=3.6 +1.2=4.4+4=4.

9、8+0.4=1+0.25=30.直接写得数.6.4+8=9.8+0.14=4.8+16=8.729=0.999.9=5.50.11=7.86=3.9+13=0.884=0.786=50.5=2.424=340.2=31.直接写出得数.0.56+8=1.2X0.1=2.9X10.02七32 .直接写出得数.3.6+3=4.84=0.042=33 .口算10.25=6.60.6=0.07X10=51+0.3=12.1+3.9Q9.99=3.6+12=1.255=3-1.9=4.3+15.37=6+0.5856.77=8.127=7.50.05=0.8X7=8X0.6=70X0.12=34.直接算出

10、得数.2.1+2=3.8+1.02=7.5X0.4=2x0.7x=10+8=0.8X0.6=3.2X0.5=9.6+0.06=3.57+0.7=4.5+0.76=35.直接写出得数.22.4+4=0.25X4=0.21+7=5.67=1.2X5=42+3=6.12+0.6=0.546=38.55=240.8=36.直接写出得数.1.60.4=7.28=4.20.01=2-3.6+1.8=45=4.60.46=5.4+1.8=021.3=37.口算1.23=0.486=4.623=6.84=0.72+12=0.724=9.66=5.213=12.55=0.12+5=38.直接写得数.56+100

11、=0.625X100=8.07义10=7.34义0=39.口算0.42+0.6=7.8+1.2=1.29-0.29=5-2.1=3.5+0.9=3.31+1.2=5X0.6=10+0.1=0.56X100=359+402=1.2+0.08=25X4+25X4=2.4+0.24=0.1X0.1=5.35+2.5=18.6-7=4X(25X14)=0.25+0.2+0.75=1.25X2.3X8=2.5-2.5X0.4=40.直接写出得数.10-9.9=0.67+0.3=8.9X100=8+16=0.9X60=1.04+2=1.5X8=0.39+39=0.25+8=0.45+9=7.29=0X5.

12、8=2.5X4=9.1+7=0.05X300=4X8X0.25=41.口算.2.4+2=48+0.6=0.24+0.2=4.8+6=2.40.2=4.80.6=9.6+0.3=96+3=42.直接写出得数16+5=224=48100=12.63=6.066=35+70=955=1.3X4=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.5.74+10=4.20.07=0.16X4=0.40.8=1.2X5=0.64+2=0.560.7=0.6+0.65=3.9+1.3=45.计算.12.8+4

13、=31.55=39.64=97.86=11.73=29.42=83.55=95.24=67.82=46.口算:0.96+8=0.080.01=0.20.05=0.36+0.18=5.1+1.7=0.540.6=4.80.24=10-0.92=0.945=2.5X4+2.5X4=47.直接写出得数.2.5X4=10+0.1=2.8+0.4=4.5+0.15=7.20.9=1.5X6=150.5=52=1.20.03=1.3X3=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=10-9.9

14、=8.6X100=148.3+100=49 .直接写出得数.3.6+1.2=4.4+4=7.1X0.4=0.720.9=2.6+13=4.80.4=0.786=7.20.4=1+0.25=4.5+0.15=10.07=0.420.7=50 .直接写得数0.29+100=51000=19+019=423-(100+23)170X100=320+100=90-26-13=0.56X100+1000=0.26X1000=24X99+24=38-25+12-25=500+100X1000=（共50小题）0.51+0.5=98+5.6=20.4+1.7=验算:2 .用竖式计算（需验算，除不尽的保留两位小

15、数）1.092-0.42=210-1.4=8.9+0.56Q3 .列竖式计算.69.02+3.426.80.3546.8+3.4（保留一位小数）4 .列竖式计算.2.05+250.13+0.17（商精确到百分位）4.2+0.284.2+1.32（得数保留三位小数）5 .用竖式计算.117.3+0.46240.3740.32+1.68.2.1+0.7=+0.35=7.2+4=7 .用竖式计算并验算.2.76X24=12.6+0.28=8 .用竖式计算.220.5+15=（用乘法验算）2.64X1.09=（得数保留两位小数）6.3+0.125=0.84X1.65=9.列竖式计算.（后两题得数保留两

16、位小数）33.6+568.96+0.287.12+0.224.13+14.10竖式计算12.4+4=45.9+0.6=51+0.3=52.8+12=75.6+0.18=9.6+0.32=11用竖式计算13+2.554.5+0.160.68+0.95（保留两位小数）2.05X0.16（验算）78.6+11=（商用循环小数表示）6.21+0.03.12竖式计算，带*的要验算1.25-0.25=78.6+11=（商用循环小数示）5.63+7.8Q数保留两位小数）28.28+0.4=*0.303+5=13 .列竖式计算（带的保留两位小数）1.57+3.90.58X0.2470.7+33（商用循环小数表

17、示）.14 .竖式计算（得数保留1位小数）带的验算64.8+1.8弋*8-6.69弋0.65X3.84七15竖式计算（带*的要验算）9.4+11=*144+12=14.2+11=16竖式计算75.6-0.1825.6+0.0322.78X1.85.63+6.1（得数保留两位小数）10+3.3（用循环小数表示）17竖式计算，按要求保留商的近似值30+7（保留两位小数）60.9+3.2（保留一位小数）25+9.9（保留整数）18用竖式计算（1）6.21+0.03=（2）10.8+45=（3）8.54+0.7=（4）72.9+0.9=.19.竖式计算.（第、题验算）50.96+6.59.25+3.7

18、=15+746.72+4.2=20用竖式计算（1） 1.25+0.25=（2）8.4+0.56=（3） 8.54+0.7=（验算）（4）78.6+11=（商用循环小数表示）21用竖式计算4.5X0.18=2.346+2.3=验算：70.3X3.6=5.06+2.2=22用竖式计算（带*得数保留两位小数）2.6X0.2529.9+0.46*4.65+1.3.23列竖式计算（除不尽的保留两位小数）24.6+0.16。13.9+6。0.325+1.5。6.24+0.8。18.3+4。19.2+6.24用竖式计算，并指出哪些是循环小数7.05+0.941.71+3.85.7+92.16183.7+2.

19、2.4.83+0.738.2+2.71.8+0.2525用竖式计算（1）3.9+0.26弋（2）9.35+3.4勺（得数保留一位小数）（3）0.17+0.11勺（商用循环小数表示）（4）0.168+0.7Q（5）4.05+18勺（得数保留两位小数）（6）4.68+5.4=（商用循环小数表示）26用竖式计算21.45+15。49.04+8。217.6+34。11.7+36。1.69+26。54.81+27.27将下列式子的得数保留两位小数25.32+0.151.03+1.21.07+9.29.45+0.3213.51+0.1317.96+0.36.28列竖式计算(第三小题得数保留两位小数，第五小

20、题请写出验算过程)47.04+5.6=3.28X2.7=0.764X1.2弋52.92+0.27=8+1.28=15.36+12=29列竖式计算：0.195+0.133.6+0.876.76-0.76.6+2.47.085+0.659.72+0.27.30竖式计算(1)0.38X0.23(2)5.79X3.6(3)4.6X0.25(4)6+24(5)52.95+75(6)3.01+7(7)4.9511(8)84.01+31(用乘法验算)(9)0.646+19(10)4.7X0.59.31计算下面各题，并用乘法验算(1)15.6+12(2)328+16(3)1.35+27(4)0.646+19.

21、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)45.15+1.5=52.65+1.3=15.75+2.1=8.42+0.6=0.436+0.2=9.25+3.7=33列竖式计算6.6+443.5+2918.9+271.35+1537.5+628.6+1120.4+243.64+52.34竖式计算0.448-32=14.3+6.7=3.8X0.26=11.32-8.95=35用竖式计算1.26+1.8=64X5.04=43.5+0.29=验算5.63+6.1（得数保留两位小数）27.8+2.5=验算9.8X0.75=36笔算5.02X4.8=1.35X320=26+0.13=4

22、8+2.3勺（得数保留两位小数）37 .用竖式计算，加号的要验算.0.756+0.18=0.35X0.48=6.02-5.94=38 .用竖式计算（有的要验算）39 .6+427.79-956.3-0.427+0.350.14+0.0842+8.39用竖式计算7.8+75=2.55+2.5=2.5X1.04=40列竖式计算3.5X10.880.93+26.7（精确十分位）1.42+1.1（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43.8+120.12+0.257+0.3511.62+913-1130.1+3319-125.6+0.07.42竖式计算30.6+454.06+0

23、.58X54.6+0.91.43列竖式计算0.58X0.08=（结果保留两位小数）0.54+0.018=13.6+3=（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95.2+28=46.8+0.13=5.63+7.8=45竖式0.73X2.157.38+1.65.95+27.6（得数保留两位小数）46用竖式计算3.381830.9X2.75.95+27.6（得数保留两位小数）47列竖式计算4.83+23=3.09+1.5=0.14+0.08=（验算）48竖式计算70+5.6=227.8+0.34=7.525+0.38=49.用竖式计算下面各题，除不尽的保留两位小数8.65

24、+0.251.8+127.250.用竖式计算.7.02X1.329.83+9.50.54+3.6小数除法计算题（口算300道+竖式200道）答案口算题（共50小题）1.【解答】解:4.8+0.8=67.5-4.5=30.75+3.5X15=0.050.4=1.410+0.01=100010-2.05=7.950.6X1.5=0.94+0.25=161.36+2.87+3.64=7.1.8X0.4X870.25=0.182 .【解答】解:2.1+0.7=32+5=0.41+0.2=57+8=0.8755.30.53=100.10.256.51.260.540.01=1040=105.6=0.90

25、.6=2.16=0.093 .【解答】解30.20.010.72+8=0.094.82=15.10.5=0.020.06=806.4+3.6=101+3=0.；101.25X8=101.55=8.45解:0.9+0.03=307.22=5.20.05X2=0.10.7411=8.140.25X4+0.25X4=163.1+3.1=11.32+87.2+40=0.181.32+8=166.250.4X2.70.87+0.13=5.5125=275.【解答】解：6.3+0.3=211.8X0.5=0.925.1+4.9=302.5X0.5X4=56.【解答】解:6.4+0.2=320.91.07+

26、8.3=9.1001.5=150解:0.89=0.018.1+9=17.1374.50.2=0.95.6+0.8=76.822.59.150.3=30.5解:1.4100=14090+6=1514.3+5.7=209.【解答】解:100.01=10000+19.8=010.【解答】5.2=1.620.04=0.117.20.86=202.80+10=0.280.025100=2.59X99+9=9000.22+0.8=1.00.2解:0.320.04=81.25X4=50.05=0.010.25+0.5=0.51.8+0.1=182.4100=0.02490+100=0.9102.05=7.9

27、51.36+3.64=53.6+10=0.3611-3.9=7.11-0.5+0.5=112.5X0.8X0=00.33X1000=3300.32+1.98=2.34+0.25=160.4义0.25=0.11.6+0.4=40.54+6=0.095.6+7=0.811【解答】解:5.0912.50.5+0.25=245.6+1=45.610=0.5090.8=100.25X6=1.50.40.5410.232.1X0.2=6.4212.5X0.8=100.5=0.20.9=0.60.01=102012【解答】解:45=0.81.875+2.5=300.20.03=6025.4=5.083.6+

28、4.4=10-5.2=4.83.47.8+6=1.30.2=0.6813.【解答】解:3.60.3=126.35.6X100=5600.25X4=10.5628=0.021.2X20=2414.【解答】解:7=0.9360.9=407+5=1.43.4+2=1.72.7+0.3=90.64+0.8=1.440.72X3=2.166.122.90.5=12.240.2=2.90.424.126=0.072=8.246.30.9=71.53+2.4=3.94.86.40.5=2.480=0.084030.910X4.1=414.60.41=16.49=278.10.5=9.215.【解答】解:0.

29、250.723.1457.250=0.025=0.050.9=0.8100=314.53.6=212.4+4.1=30.01+0.99=17.6+7.6=12.5=5016.【解答】解:0.350.30.30.7X0.9=0.635=0.072=0.60.2=1.50+7+3=02.44.9X0=00.45X5=1.25=4.517.【解答】解:0.641.40.72+0.9=0.810.91.6=0.40.5=0.78.9=22.7+7.2=9.90+1.5=02.7X0.3=0.81240.3=804.3+2.7=72000.254+0.8=50.07=144.9=1.22518.【解答】

30、解:0.8+10=0.825+8=33187058=01000=0.187237-9=226257+0=2570X0.008=00.001100=0.16.080524X5=1201000=6080.519.【解答】解:0.635.41.45七0X4.65=03.5+0.7=59=0.073.721+0.25=44X0.5=20.1+0.05=23.30.1=332.70.9=30.36+0.12=30.149.66=1.62=0.0720【解答】解:8.4+4=2.13.6+0.2=180.7290=0.0081.1X0.8=0.880.56+4.44=51.25X5X8=502.9+3.7

31、+2.1=87.6X8+2.40.4X0.25=0.1.78=8021.【解答】解:4.8+0.8=67.55.7+3.3=91+0.25=40.751.5=0.50.45=7.050.2+4=0.050.214=0.841.26.2+0.62-1=95+3.20.8=960=7222.【解答】解:0.7223.7+2.63=26.4.80.50.9=0.8330.4=122=0.256.51+0.25=48+0.8=1010+4=2.55.6=0.90.40.480.8=0.60.350.30.8=0.324=1.40.15=223【解答】解:1.22+8=0.254+0.5=80.720.

32、4=34=0.1805.32=03.6+1.8=5.40.246.40.1250.73=0.270.6=0.40.513.21.6=480=100.8=0.40.6=2224【解答】解:2.50.423.50.540.5=50.6=0.70.01=3500.6=0.90.25X4=112.50.2X50=100+3.68=00.8=100.8-0.35=0.450.3X0.2=0.0625.【解答】解:0.560.6+0.65=1.253.9+1.3=312+0.03=4000.7=0.85.29913.52.825义0.32X0.13=401.01=99.997.2=3.5125=10002

33、6【解答】解:3.6+1.2=38.19=0.94.80.6=81.259925888=100.9=1100.05=5000.008=110002.5=0.427【解答】解:0.640.77.2+(0.8X9)=1400+4.8=00.32=21.2=0.840.25=102.9+2.9=10.30.07X50=3.510022.10.6=0.180.07=71=22.128【解答】解：0.02X0.1=0.00212-4.3=7.736+0.01=36000.8X0.125=0.12.3+0.8=3.10.36+0.4+9=0.129.【解答】解：3.6+1.2=34.4+4=1.14.8+

34、0.4=1210.25=430【解答】解:6.48=0.89.84.8+16=0.30.638.70.14=709=0.070.995.513.86.9=229=0.39.9=0.10.11=5031.【解答】解:0.56+8=0.070.073-1.9=1.110=0.71.2X0.1=0.1251+0.3=1704.3+15.37=19.672.9X10.0212.1+3.9Q6+0.58弋103032.【解答】解:3.6+3=1.27.8+6=1.39.99=1.156.77=8.14.84=1.23.9+13=0.33.6+12=0.38.127=0.30.040.881.257.52

35、=0.024=0.225=0.250.05=15033【解答】解:10.25=40.782.424=0.16.60.6=110.8X7=5.634【解答】2.1+2=1.050.80.6=0.4835【解答】22.44=5.642+3=146=0.135+0.5=108X0.6=4.8解:3.8+1.02=4.823.20.5=1.6解:0.25X4=16.1234+0.2=170700.12=8.47.5X0.4=39.60.06=1600.217=0.030.542x0.7x=1.3x3.570.7=5.15.6+7=0.838.51.22410+8=1.254.5+0.76=5.26X5

36、=60.6=10.26=0.095=7.70.8=3036【解答】解:1.67.2+8=0.94.23.60.4=40.01=4201.8=04+5=0.84.65.4+1.8=30+21.3=00.46=1037【解答】解:1.2+3=0.40.484.66.8+4=1.70.720.724=0.186=0.0823=0.212=0.069.66=1.65.212.50.1213=0.45=2.55=0.02438.【解答】解:56+100=0.561.290.56X100=565.35+2.5=7.850.6250.29=15-2.1=2.9359+402=76118.67=11.6100

37、=62.58.07X10=80.73.5+0.9=4.41.2+0.08=1.284X(25X14)=14007.34X0=03.31+1.2=4.25X4+25X4=160.25+0.2+0.75=1.25139.【解答】解:0.425X0.6=32.41.25X2.3X8=230.6=0.70.24=107.8+1.2=9100.12.52.5X40【解答】10-9.9=0.18+16=0.51.5X8=120.1=1000.1=0.010.4=1.5解:0.67+0.3=0.98.9X100=8902.5X4=100.9X60=541.04+2=0.529.1+7=1.30.390.25

38、0.050.459=0.052.4+2=1.22.40.2=1242【解答】16+5=3.23570=0.543【解答】0.750.5=1.516.80.4=4244【解答】5.7410=0.57439=0.017.2+9=0.8解:480.6=804.80.6=8解:224=5.5955=19解:8=0.031250X5.8=00.240.2=1.29.6+0.3=3248100=0.481.3X4=5.21.6+0.4=473.5=24.86=0.82.80.5300=150.25=8963=3212.63=4.26.066=1.0112.60.6=210.28=100.25=2解:4.2

39、0.160.07=604=0.641.86=0.30.4+0.8=0.51.2X5=60.642=0.320.56+0.7=0.80.6+0.65=1.3.9+1.3=32545.【解答】解:(1)12.8+4=3.2(2)31.5+5=6.3(3)39.6+4=9.9(4)97.8+6=16.3(5)11.7+3=3.9(6)29.4+2=14.7(7)83.5+5=16.7.(8)95.2+4=23.8(9)67.8+2=33.946.【解答】解：口算:(1)0.96+(2)0.08+(3)0.2+(4)0.36+(5)5.1+1.7=38=0.120.01=80.05=40.18=2(6

40、)0.54+(7)4.8-(8)100.6=0.90.24=200.92=0.0847.【解答】解：2.5X10+2.8+4.5(9)0.9+(10)2.5X4+45=0.022.5X4=16+7.2+4=100.1=1000.4=70.15=300.9=81.5X6=915+0.5=305+2=2.51.2+1.3X48.【解答】0.3+5.7=65.3+50.7=560.90.7=0.249.【解答】3.6+1.2=34.4+4=1.17.1义0.4=2.84解:1-0.6=0.40.40.35=0.0510-9.9=0.1解:0.720.9=0.80.786=0.134.50.15=30

41、0.03=403.3+5.6=8.91-0.04=0.968.6X100=8602.6+13=0.27.2+0.4=181-0.07=0.933=3.90.25+5.75=68+50.28=58.28148.3100=1.4834.8+0.4=121+0.25=40.420.7=0.650.【解答】解:0.295+1000=0.00519+019=19423-(100+23)=300100=0.0029170X1003.290-26-13=510.56X100+1000=0.0560.26X1000=26024X99+24=24003825+12500+100X100

42、0=500025=0二.竖式计算题（共50小题）1 .【解答】解：0.51-0.5=1.0298-5.6=1520.4-1.7=122 .【解答】解：1.092-0.42=2.6210-1.4=1508.9-0.5615.893 .【解答】解：69.02-3.4=20.326.8X0.35=9.3846.8-3.413.84 .【解答】解：2.05-25=0.0820.13-0.170.764.2-0.28=154.2-1.323.1825 .【解答】解：117.3-0.46=25524X0.37=8.8840.32-1.68=246 .【解答】解：2.1-0.7=37-0.35=207.2-

43、4=1.87.【解答】解：2.76X24=66.2412.6+0.28=458.【解答】解：220.5-15=14.72.64X1.09弋2.886.3-0.125=50.40.84X1.65=1.3869.【解答】解：33.6-56=0.68.96-0.28=327.12+0.22弋3.364.13+14弋0.3010 .【解答】解：(1) 12.4+4=3.1(2)45.9-0.6=76.5(3)51+0.3=170(4)52.8+12=4.4(5) 75.6+0.18=420(6)9.6+0.32=3011 .【解答】解：13+2.5=5.254.5+0.16=340.6250.68+0

44、.95弋0.722.05X0.16=0.32878.6+11=7.1(商用循环小数表示)6.21+0.03=20712【解答】解：1.25+0.25=578.6+11=7.15.63+7.8弋0.7228.28+0.4=70.70.3035=0.060613.【解答】解：1.57+3.9弋0.400.58X0.24弋0.1470.7+33=2.114 .【解答解：64.8+1.8=368-6.691.3。0.65X3.84弋2.515 .【解答】解：9.4+11=0.8*144+12=1216 .2+11=1.216.【解答】解：75.6-0.18=42025.6+0.032=8002.78X

45、1.8=5.0045.63+6.1弋0.9210+3.3弋3.17.【解答】解：30+7Q4.2960.9+3.2弋19.025+9.9弋318 .【解答】解：(1)6.21+0.03=207(2)10.8+45=0.24(3)8.54-0.7=12.2(4)72.9+0.9=81.19 .【解答】解：50.96+6.5=7.849.25+3.7=2.515+74=0.226.72+4.2=1.6.20【解答】解：(1)1.25+0.25=5(2)8.4+0.56=15(3)8.54-0.7=12.2(4)78.6+11=7.121 .【解答】解：4.5X0.18=0.812.346+2.3=1.0270.3X3.6=253.085.06+2.2=2.322 .【解答】解：2.6X0.25=0.6529.9+0.46=65*4.65+1.3弋3.5