小數(shù)除法計(jì)算題道口算道豎式道含答案

1、小數(shù)除法計(jì)算題500道（口算300道+豎式200道）含答案. 口算題（共50小題）1 .直接寫出下面各題的得數(shù).4.8-0.8=7.5-4.5=0.75+15=3.5X0.4=10-0.01 =10-2.05=0.6X1.5=40.25=1.36+2.87+3.64=1.8X0.4 X0.25=2 .直接寫出得數(shù).2.137=2-5=1 卻.2=7 8=5.3 0.53=0.1 0.01=0.25 W0=6.5-5.6=1.26 0.6=0.546=3 .直接寫得數(shù)30.22=0.010.5=0.728=4.80.06=6.4+3.6=1 3=10- 1.55=1.25X8=4 . 口算.0.

2、9303=7.2-2=0.05X2=0.74 X11 =0.25 >0.25X4=3.13.1 =1.32+8 1.32+8=7.240=6.25 0.87+0.13=0.4X2.7 X25=5 .直接寫得數(shù).6.3W3=1.8X0.5=25.1+4.9=2.5X0.5 44=6.直接寫出得數(shù).0.9 0.89=1.07+8.3=3.6+10=6.432=100X1.5=8.1+9=4.5X0.2=11 3.9=7 .直接寫得數(shù).5.6W8=6.82-5.2=2.5X0.04=1 0.5+0.5=0.5628=36 H.9=0.64+0.8=0.72 X3=9.150.3=17.20.8

3、6=1.8如=12.5X0.8X0=8.直接寫得數(shù)1.4 X100=2.80 勺0=2.4+100=0.33X1000=90"0.025X100=90+100=0.32+1.98=14.3+5.7=9X99+9=寫得數(shù).10-0.01 =0.22+0.8=10-2.05=40.25=0+19.8=0.2X0.05=1.36+3.64=0.4 X0.25=10.直接寫得數(shù)0.2535=0.320.04=1.25 W=1.6 W4=0.54"5.6+7=11 .直接寫得數(shù).5.09+10=12.5X0.8=0.5 0.25=45.6 1=32.1X0.2=0.25X6=0.4X

4、0.5=0.54 0.9=10.2301 =12.5X0.8=12. 口算4 T5=1.8303=75-2.5=0.2X25.4=3.6+4.4=10-5.2=3.4 X0.2=7.8"13.直接寫出得數(shù)3.633=6.3H=5.6X100=0.25 X4=1.2X20=75=6.120.5=2.9 代 W2=4.12X2=6.4*0=4.6W.5=14. 口算3.42=2.7 W3=0.426=6.3 W9=1.53+2.4=4.8X0.5=40X0.41=30.9X9=10X4.1 =15.直接寫得數(shù).1 卻.25=4X0.5=0.10.05=3.3 如=0.255=0.720.

5、9=12.44.1=0.01+0.99=16 .直接寫得數(shù)0.355=0+7令17 . 口算我最棒.0.64+1.6=2.7+7.2=4.3+2.7=18 .直接寫得數(shù)0.8+10=237 - 9=6.0805X1000=19 .直接寫得數(shù).0.63"0.720.9=2.7X0.3=0.25 W.9=187 +1000=0 X0.008=0W.65=3.145X100=7.6 7.6=0.3X2=0.3W2=2.4X5=4.9X0=1.4X0.5=0+1.5=200 X0.07=25+8=257+0=24X5=5.4+1.45=7.2 3.6=1 50=1.25 W=50-02.5=

6、0.7X0.9=2X0.45X5=10.9- 8.9=24 H.3=40.8=058=0.001 X100=3.5W7=2.7W90.360.12=0.142=9.6"20.直接寫得數(shù).8.44=3.6 0.2=0.72 兇0=1.1X0.8=0.56+4.44=1.25 X5X8=2.9+3.7+2.1=7.6X8+2.4 X8=0.4X0.25=21.請(qǐng)你直接寫出得數(shù)4.838=7.5-0.45=5.7+3.3=1 卻.25=6.20.62- 1 =0.75+1.5=0.24=0.21 X4=1.2X60=5+3.2 0.8=22.直接寫出得數(shù).0.7239=23.7+2.63=

7、4.8旬.4=0.52=6.5-5.6=1 旬.25=80.8=104=0.4X0.8=0.48 0.8=0.35 W=0.30.15=23.直接寫出得數(shù)1.234=2 8=4 0.5=0.72 4=0 抬.32=3.6+1.8=1 - 0.73=0.24 0.6=6.4+1.6=0.125X80=0.5X0.8=13.20.6=24.直接寫得數(shù).2.535=0.420.6=3.5301=0.5436=0.8-0.35=0.25W=12.5X0.8=0.2X50=0368=0.3X0.2=25.直接寫出得數(shù).0.5637=0.6+0.65=3.9+1.3=12303=5.20.13=99X1.

8、01=13.5-2.8-7.2=25X0.32X125=#. 口算3.6-1.2=4.80.6=1.25X8=990.9=250.05=88).008=12.5=27.直接寫得數(shù).0.640.32=0.7X1.2=7.2- (0.8X9)40X0.25=2.9 隹 9二0.3X0.6=0.07 >50=100X0.07=0-4.8=22.1X1 =0.04%0.88 +1.255=7.50.05=28 . 口算0.02X0.1 =12-4.3=36 301 二0.8X0.125=2.3+0.8=0.36+0.4"29 . 口算.3.6-1.2=4.4一4=4.8R.4二1 0.

9、25=30 .直接寫得數(shù).6.4B9.80.14=4.8-16=0.639=8.729=0.99 兇.9二5.50.11 =13.869二31 .直接寫出得數(shù).0.56 B=0.07X10=3-1.9=1.2X0.1 =51H.3二4.3+15.37=2.9X10.0212.13.960.5832 .直接寫出得數(shù).3.607.8"9.9 兇二56.7-7=4.84=3.9-13=3.6-12=8.127=33. 口算1 卻.25=0.78 "2.424=6.6W6=50.5=34-0.2=0.8X7=8 X0.6=70X0.12=34 .直接算出得數(shù).2.12=3.8+1.

10、02=7.5 X0.4=2x 0.7x=10 8=0.8X0.6=3.2X0.5=9.60.06=3.57 0.7=4.5+0.76=35 .直接寫出得數(shù).22.44=0.25 W=0.21 +7=5.6+7=1.2X5=42+3=6.120.6=0.54"38.5 5=24 0.8=36.直接寫出得數(shù).1.6 0.4=7.2件4.2 0.01=2-3.6-1.8=4 5=4.60.46=5.4+1.8=0 %.3=37. 口算1.2 3=0.48"4.6 23=6.8 4=0.72+12=0.72 4=9.6"5.2+13=12.55=0.125=38.直接寫得

11、數(shù).56+100=1.29-0.29=0.56X100=5.35+2.5=0.625 X100=5-2.1 =359+402=18.6-7=8.07X10=3.5+0.9=1.2+0.08=4X (25X14)=7.34X0=3.31+1.2=25 W 攵5 X4=0.25+0.2+0.75=39. 口算0.42 0.6=5X0.6=2.4 0.24=1.25 X2.3X8=7.8+1.2=100.1 =0.1X0.1 =2.5- 2.5X0.4=40.直接寫出得數(shù).10-9.9=0.67+0.3=8.9X100=2.5X4=8+16=0.9X60=1.04 攵=9.1+7=1.5X8=0.3

12、9 39=0.25 8=0.05X300=0.45"7.2"0X5.8=4X8X0.25=41 . 口算.2.42=48 0.6=0.240.2=4.8"2.432=4.8 0.6=9.6 0.3=96令42.直接寫出得數(shù)16 5=22 4=48 100=12.6 3=6.066=35 70=955=1.3 W=12.6 0.6=1.8"43.直接寫的數(shù)0.750.5=1.6笛4=7K.5=16.80.4=2.80.28=0.50.25=44. 口算下面各題.5.74+10=4.20.07=0.16X4=0.438=1.2X5=0.64%0.5637=0

13、.6+0.65=3.9+1.3=45.計(jì)算.12.8 4=31.5 5=39.6 4=48.直接寫出得數(shù).0.3+5.7=1 - 0.6=3.3+5.6=0.25+5.75=5.3+50.7=0.4-0.35=1 - 0.04=8+50.28=0.9-0.7=10-9.9=8.6X100=148.3+100=49.直接寫出得數(shù).3.6+1.2=0.720.9=2.6+13=4.80.4=4.44=0.786=7.234=1 卻.25=7.1 X0.4=4.50.15=1 - 0.07=0.420.7=50.直接寫得數(shù)0.29+100=5+1000=19+0 +19=423- (100+23)1

14、70 X100=320+100=90- 26- 13=0.56X100+1000=0.26X1000=24 X99+24=38- 25+12 - 25=500 +100 X1000=.豎式計(jì)算（共50小題）97.8"11.7029.4%83.55=46. 口算:0.968=0.540.6=472.5W=1.5X6=95.24=0.08 0.01=4.8 0.24=直接寫出得數(shù).10如=15 0.5=0.2 0.05=10-0.92=2.8 0.4=5 2=67.8 2=0.36 如8=0.9 45=4.50.15=1.2 0.03=5.1+1.7=2.5X4 攵.5W=7.2 0.9

15、=1.3X3=1 .豎式計(jì)算.0.510.5=98 代.6=20.4+1.7=驗(yàn)算:2 .用豎式計(jì)算（需驗(yàn)算，除不盡的保留兩位小數(shù)）.1.0920.42=210-1.4=8.9W56Q3列豎式計(jì)算69.02+3.426.8X0.3546.83.4 （保留一位小數(shù)）4列豎式計(jì)算2.05攵50.13R.17 （商精確到百分位）4.20.284.2+1.32 （得數(shù)保留三位小數(shù)）5用豎式計(jì)算117.3 -H0.4624 X0.3740.32T.68.6豎式計(jì)算2.137=7335=7.24=7用豎式計(jì)算并驗(yàn)算2.76X24=12.60.28=8用豎式計(jì)算220.5+15=（用乘法驗(yàn)算）2.64X1.

16、09=（得數(shù)保留兩位小數(shù)）6.30.125=0.84X1.65=9列豎式計(jì)算（后兩題得數(shù)保留兩位小數(shù)）33.6 抬68.960.287.120.224.13+14.10 豎式計(jì)算12.4F=45.9包6=51 3.3=52.8+12=75.60.18=9.6 笛32=11用豎式計(jì)算13 攵.554.5R.160.680.95 （保留兩位小數(shù)）2.05X0.16 （驗(yàn)算）78.6+11=（商用循環(huán)小數(shù)表示）6.21203.12 豎式計(jì)算，帶*的要驗(yàn)算1.250.25=78.6+11=（商用循環(huán)小數(shù)示）5.63+7.8Q數(shù)保留兩位小數(shù)）28.280.4=*0.303代=13 .列豎式計(jì)算（帶的保留

17、兩位小數(shù)） 1.57-3.90.58X0.2470.7-K33 （商用循環(huán)小數(shù)表示）14 .豎式計(jì)算（得數(shù)保留1位小數(shù)）帶的驗(yàn)算 64.8+1.8Q 8 6.69Q0.65X3.84七15 豎式計(jì)算*的要驗(yàn)算）9.4+11 =*144+12=14.2+11 =16 豎式計(jì)算75.60.1825.60.0322.78X1.85.636.1 （得數(shù)保留兩位小數(shù)）10+3.3 （用循環(huán)小數(shù)表示）17 豎式計(jì)算，按要求保留商的近似值30+7 （保留兩位小數(shù)）60.9+3.2 （保留一位小數(shù)）25 r.9 （保留整數(shù)）18 .用豎式計(jì)算(1) 6.210,03=(2) 10.845=(3) 8.540.

18、7=(4) 72.90.9=19 .豎式計(jì)算.(第、題驗(yàn)算) 50.96y.5 9.25W.7= 15H4 6.72F.2=20 .用豎式計(jì)算(1) 1.250,25=(2) 8,40.56=(3) 8.540.7=(驗(yàn)算)(4) 78.6+11=(商用循環(huán)小數(shù)表示 )21.用豎式計(jì)算.4.5X0.18=2.346 隹3=驗(yàn)算：70.3X3,6=5.06 隹2=22.用豎式計(jì)算(帶*得數(shù)保留兩位小數(shù))2.6X0.2529.9W46*4.65+1.3.23.列豎式計(jì)算(除不盡的保留兩位小數(shù)) 24.6 W,16; 13.9 宓；0.325+1.5; 6.24 W.8; 18.3F; 19.2W.

19、24.用豎式計(jì)算，并指出哪些是循環(huán)小數(shù).7.050,941.713.84.830.75.7 兇38.2 2.72.16 181.80,253,7 隹2.25.用豎式計(jì)算(1) 3.9W26Q(2) 9.35 +3.4(得數(shù)保留一位小數(shù))(3) 0.170.11-(商用循環(huán)小數(shù)表示)(5) 4.05+18勺(得數(shù)保留兩位小數(shù))26用豎式計(jì)算21.45 +15;49.048;11.7"1.69 交6;27將下列式子的得數(shù)保留兩位小數(shù)©25.320.15 1.03+1.2 9.45 W3213.510.1328列豎式計(jì)算47.04y.6=52.920.27=29列豎式計(jì)算：0.1

20、95 -H0.136隹430豎式計(jì)算(1) 0.38X0.23(5) 52.95+75(4) 0.1680.7(6) 4.68y.4=(商用循環(huán)小數(shù)表示)217.634;54.81 攵7. 1.07W.2 17.96W.36.(第三小題得數(shù)保留兩位小數(shù)，第五小題請(qǐng)寫出驗(yàn)算過程.3.28X2.7=0.764X1.2弋8+1.28=15.36+12=3.6 W.876.760.767.0850.659.720.27.(2) 5.79X3.6(3) 4.6X0.25(4) 6攵4(6) 3.01 H (7) 4.9511(8) 84.01+31 (用乘法驗(yàn)算)31 計(jì)算下面各題，并用乘法驗(yàn)算(1)

21、15.6+12(2) 328+16(9) 0.646+19(10) 4.7X0.59.(3) 1.35攵7(4) 0.646+19.32用豎式計(jì)算下列各題(除不盡的保留兩位小數(shù)，后面兩道題要驗(yàn)算)45.15 +1.5=52.65+1.3=15.752.1 =41.列豎式計(jì)算8.42+0.6=0.4360.2=9.253.7=33.列豎式計(jì)算6.6 443.5 2918.9 271.35 1537.5 628.6 1120.4 243.6452.34.豎式計(jì)算0.448 32=14.3+6.7=3.8X0.26=11.32- 8.95=35.用豎式計(jì)算1.26+1.8=64X5.04=43.5卻

22、.29=驗(yàn)算5.63元.1 （得數(shù)保留兩位小數(shù)）27.8隹5=驗(yàn)算9.8X0.75=36.筆算5.02 W.8=1.35 X320=26 H.13=（得數(shù)保留兩位小數(shù)）37.用豎式計(jì)算，加號(hào)的要驗(yàn)算. 0.7560.18=0.35X0.48=6.02 5.94=38.用豎式計(jì)算（有的要驗(yàn)算）96.6427.79 兇5 6.3W427W350.14W.08428.39.用豎式計(jì)算.7.8 75=2.55 2.5=2.5 X1.04=3.5X10.880.93攵6.7 （精確十分位）1.42+1.1 （商用循環(huán)小數(shù)表示）41 計(jì)算下面各題，除不盡的用循環(huán)小數(shù)表示商43.8+120.12 2257s

23、3511.62 r13-1130.1 K319-125.6W07.42豎式計(jì)算30.6454.06W58X54.6 W91.43列豎式計(jì)算0.58X0.08=（結(jié)果保留兩位小數(shù)）0.540.018= 13.6苗=（商用循環(huán)小數(shù)表示）44列豎式計(jì)算，并驗(yàn)算前兩個(gè)，第三個(gè)保留兩位小數(shù)第三個(gè)保留兩位小數(shù).95.2 攵8=46.80.13=5.637.8=45豎式0.73X2.157.38+1.65.95攵7.6 （得數(shù)保留兩位小數(shù)）46用豎式計(jì)算3.38+1830.9 X2.75.95攵7.6 （得數(shù)保留兩位小數(shù)）47列豎式計(jì)算4.83 攵3=3.09+1.5=0.140.08=（驗(yàn)算）48豎式計(jì)算

24、70 y.6=227.80.34=7.5250.38=49用豎式計(jì)算下面各題，除不盡的保留兩位小數(shù)8.65W251.8+127.2+1.1.50.用豎式計(jì)算.7.02 X1.329.83 兇.50.54。6小數(shù)除法計(jì)算題（口算300道+豎式200道）答案. 口算題（共50小題）1 .【解答】解:4.838=67.5 4.5=30.75+15=0.053.5X0.4=1.4100.01=100010-2.05=7.950.6X1.5=0.940.25=161.36+2.87+3.64=7.871.8X0.4X0.25=0.182 .【解答】解:2.137=32 代=0.41 卻.2=578=0.

25、8755.3353=100.1301=100.25W0=10 6.5 5.6=0.91.260.6=2.10.544=0.093.【解答】解30.2 攵=15.10.010.5=0.02 0.72 出=0.094.80.06=806.4+3.6=10100.;10- 1.55=8.45 1.25X8=10解:0.90.03=307.2 2=5.20.05X2=0.10.74X11=8.140.250.25X4=163.1。1=11.32+8 1.32+8=16 7.2+40=0.186.25- 0.87+0.13=5.510.4 X2.7X25=275.【解答】解：6.30.3=211.8X0

26、.5=0.925.1+4.9=302.5X0.5 X4=5# .【解答】解:6.40.2=32100X1.5=1507 .【解答】解:5.638=79.150.3=30.58 .【解答】解:1.4X100=14090 6=1514.3+5.7=209 .【解答】解:100.01=10000+19.8=00.9-0.89=0.018.1+9=17.16.82-5.2=1.6217.2 0.86=202.80+10=0.280.025X100=2.59X99+9=9000.22+0.8=1.020.2X0.05=0.011.07+8.3=9.374.5 0.2=0.92.5 0.04=0.11.8

27、0.1=182.4+100=0.02490+100=0.910-2.05=7.951.36+3.64=53.6+10=0.3611 - 3.9=7.11 - 0.5+0.5=112.5X0.8X0=00.33 X1000=3300.32+1.98=2.340.25=160.4 X0.25=0.110 .【解答】解：0.250.5=0.50.320.04=81.25 W=51.6W4=40.54 6=0.09 5.6 7=0.8 11 【解答】解:5.09 10=0.50912.5X0.8=10 0.50.25=245.6+1=45.632.1 X0.2=6.420.25X6=1.50.4X0.

28、5=0.2 0.540.9=0.6 10.20.01=1020 12.5X0.8=1012 .【解答】解:4 代=0.83.6+4.4=813 .【解答】解:3.60.3=126.3+7=0.95.6 X100=5600.25 W=10.56 攵8=0.0236 0.9=400.64+0.8=1.440.72X3=2.161.2X20=247 5=1.46.120.5=12.242.9 5 0.2=2.914 .【解答】解:3.4 欠=1.72.733=90.42 6=0.074.12X2=8.246.3 0.9=71.53+2.4=3.934.8X0.5=2.46.4 80=0.0840X0

29、.41=16.430.9X9=278.110X4.1=414.6 0.5=9.21.80.03=60 75 隹5=300.2X25.4=5.0810-5.2=4.83.4X0.2=0.68 7.8"1.315 .【解答】解:0.25 抬=0.05 0.720.9=0.83.145 X100=314.5 7.2 總6=212.4X1=30.01+0.99=17.6 7.6=11.25 >4=51 50=0.0250-02.5=5016 .【解答】解:0.35 抬=0.07 0.3 X2=0.6 0.332=1.5 0.7 X0.9=0.630+7K=02.4 X5=1.2 4.9

30、X0=02X0.45X5=4.517 .【解答】解:0.64+1.6=0.41.4X0.5=0.70.72 0.9=0.810.9-8.9=22.7+7.2=9.90 1.5=02.7X0.3=0.8124 H.3=804.3+2.7=7200X0.07=140.25X4.9=1.2254 0.8=518 .【解答】解:24.【解答】解:0.8+10=0.825+8=33187+1000=0.187 0 抬8=0237 9=226257+0=257 0 X0.008=00.001X100=0.16.0805 X1000=6080.5 24 X5=12019 .【解答】解:0.63 "

31、0.075.4 +1.45 弋 3.720W.65=03.5 W7=51 卻.25=44X0.5=20.10.05=23.30.1=332.7W9=30.360.12=30.14 攵=0.079.6 6=1.620 【解答】解:8.4 4=2.13.6 0.2=180.72 90=0.0081.1X0.8=0.880.56+4.44=51.25 X5X8=502.9+3.7+2.1=8.77.6X8+2.4 X8=800.4 X0.25=0.121 .【解答】解:4.838=67.5-0.45=7.055.7+3.3=91 0.25=46.20.62- 1=90.75+1.5=0.5 0.2*

32、0.050.21 X4=0.841.2X60=72 5+3.2 28=922.【解答】解:0.720.9=0.823.7+2.63=26.334.8 0.4=120.5 攵=0.256.5-5.6=0.91 -0.25=4838=10104=2.50.4X0.8=0.320.48 0.8=0.60.35W=1.40.30.15=223.【解答】解:1.2 0.4=3 2 8=0.254 0.5=80.72 4=0.180 5.32=03.6+1.8=5.41 0.73=0.270.24 0.6=0.46.4-1.6=4 0.125X80=10 0.5X0.8=0.413.20.6=222.53

33、5=5 0.420.6=0.7 3,50,01=350 0.5436=0.9 0.8- 0.35=0.450.25 W=112.5X0.8=100.2X50=100K.68=00.3X0.2=0.0625 .【解答】解：12 H,03=4000.560.7=0.8 0.6+0.65=1.253.9+1.3=3 5.20,13=40 99X1.01=99,99 13.5- 2.8 - 7.2=3.5 25X0.32X125=100026 .【解答】解：3.6+1.2=38.1 "0.94.836=81.25X8=10990.9=110 25 H,05=500 880.008=11000

34、 1 攵,5=0.427 .【解答】解：0.640,32=2 0,7 X1,2=0,84 7.2+ (0.8X9) =1 40X0.25=10 0 4.8=02,9 隹9=10,3 X0,6=0,18 0.07X50=3.5100X0.07=7 22.1 X1=22.128 .【解答】 解：0.02X0.1=0.00212-4.3=7.7360.01=36000.8X0.125=0.12.3+0.8=3.10.360,49=0.129 .【解答】解：3.6+1.2=330 4 4=1.131 8 0.4=12 1 0.25=430.【解答】解：6.4 累=0.89,80,14=70 4.8+1

35、6=0.30.63*0.078.729=0.30.99 兇.9=0.1 5,50,11=50 13.8 毛9=231 .【解答】解:0.56 8=0.070.07X10=0.73- 1.9=1.11.2X0,1=0.1251 33=170 4.3+15.37=19.672.9X10.02Q30 12.13.93 60.581032 .【解答】解：3.601.24.8F=1.20.04 欠=0.027.8 6=1.33.9+13=0.30.88 4=0.229.9 9=1.13.6+12=0.31.25 5=0.2556.7 7=8.18.1 27=0.37.50,05=15033 【解答】1

36、0.25=46.6 0.6=110.8X7=5.634 【解答】解：0.78 6=0.1350.5=108X0.6=4.8解：2.4 24=0.1340.2=17070X0.12=8.42.1 欠=1.053.8+1.02=4.82 7.5X0,4=32x-0.7x=1,3x 10+8=1.250.8X0,6=0,48 3.2X0,5=1.69.60,06=160 3.570.7=5.14.5+0.76=5.2635.【解答】解:22.44=5.6 0.25 X4=10.217=0,03 5.6+7=0.81.2X5=642 3=146.12 0.6=10.20.54 6=0.09 38.5

37、5=7.7 24 0.8=3036 .【解答】解:1.6W4=4 7.2 累=0.94.20,01=420 2 - 3.6+1.8=04.6 0.46=10解：0.48 6=0.089.6 6=1.65.4+1.8=34.6 23=0.25.2+13=0.40 攵1.3=06.8 4=1.712.5 y=2.50.72+12=0.060.125=0,0245.35+2.5=7.8518.6-7=11.64X (25X14) =14000.25+0.2+0.75=1.24 代=0.837 【解答】1.2 3=0.40.72 4=0.1838 .【解答】解:56 100=0.560.625 X10

38、0=62.58.07X10=80.77.34X0=039 .【解答】解:1.29-0.29=15- 2.1=2.93.5+0.9=4.43.31+1.2=4.510.56X100=56359+402=7611.2+0.08=1.2825W-25W=160.420.6=0.7 5 X0.6=32.40,24=101.25 X2,3 X8=237.8+1.2=9100.1=100 0,1X0,1=0,01 2.5 2.5X0,4=1.540 .【解答】解:10-9.9=0.18+16=0.51.5X8=120.45 兇=0.050.67+0.3=0.970.9 X60=540.39 竟39=0,0

39、17.2 9=0.88.9X100=8901.04 攵=0.520.25=0.031250X5.8=02.5W=109.1 7=1.30.05 >00=154X8X0.25=841 【解答】解:2.4 欠=1.24836=80 0.240.2=1.2 4.8毋=0.896 3=322.40.2=12 4.836=89,60,3=3242 .【解答】解:16 y=3.2224=5.5 48+100=0.48 #.63=4.26.066=1.0112.60.6=21 1.8"0.335+70=0.5 95 抬=191.3X4=5.243 .【解答】解: 0.7535=1.5 1.6

40、3.4=4 16.834=42 2.80.28=10 0.50.25=244 .【解答】解:5.74+10=0.5744.2 0.07=600.16X4=0.640.4 0.8=0.51.2X5=60.64 2=0.320.56 0.7=0.80.6+0.65=1.253.9+1.3=345.【解答】解:(1) 12.84=3.2 (2) 31.5代=6.3 (3) 39.64=9.9 (4) 97.86=16.3 (5) 11.7+3=3.9 (6) 29.4+2=14.7 (7) 83.5代=16.7 (8) 95.2+4=23.8 (9) 67.8攵=33.9 46.【解答】解：口算:(

41、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 ) 0.54 +(7 ) 4.8 +( 8 ) 10(9 ) 0.9 +(10) 2.5X4 +0.6=0.90.24=200.92=0.0845=0.022.5 >4=1647 【解答】解:2.5W=1010 如=1002.834=7 4.50.15=30 7.239=81.5X6=915 0.5=305-2=2.51.20.03=40 1.3X3=3.948 .【解答】解:26.8X0.35=9.385.3+50.7=560

42、.4 0.35=0.051 0.04=0.968+50.28=58.280.9-0.7=0.2 10-9.9=0.18.6X100=860148.3+100=1.48349 .【解答】解:3.6+1.2=30.720.9=0.8 2.6+13=0.24.8 0.4=124.4F=1.10.78 毋=0.137.20.4=181 0.25=47.1X0.4=2.84 4.50.15=301 0.07=0.93 0.42 37=0.650 .【解答】解:0.295+1000=0.00519+0 19=19423 - (100+23 ) =300100=0.0029170X100=17000320

43、100=3.290-26- 13=510.56 X 1001000=0.0560.26X1000=260243825+12500 +100 X1000=500099+24=240025=0（共50小題）1 .【解答】解：0.510.5=1.02 98 y.6=15 20.4+1.7=122 .【解答】 解：1.0920.42=2.6 210+1.4=150 8.90.56 15.893 .【解答】 解：69.023.4=20.346.8 總"13.84 .【解答】 解：2.05+25=0.0820.130.170.764.2 0.28=154.3 +1.32弋 3.1825 .【解答

44、】解：117.30.46=25524X0.37=8.8840.32+1.68=246 .【解答】解：2.137=37335=207.2F=1.87.【解答】解：2.76X24=66.24 12.6.28=458.【解答】解：220.5+15=14.72.64X1.09弋2.886.30.125=50.40.84X1.65=1.3869.【解答】解：33.6y6=0.68.960.28=327.120.223.36 4.13+14弋0.3010 .【解答】解：(1) 12.4+4=3.1 (2) 45.90.6=76.5 (3) 510.3=170 (4) 52.8+12=4.4(5) 75.6

45、0.18=420 (6) 9.60.32=3011 .【解答】解：13攵.5=5.254.50.16=340.6250.680.950.722.05X0.16=0.32878.6+11=7.1 (商用循環(huán)小數(shù)表示)6.21 303=20712【解答】解：1.250.25=578.6+11=7.15.63+7.8弋 0.7228.28 0.4=70.70.303 5=0.060613.【解答】解：1.573.90.400.58X0.24弋0.1470.733=2.114 .【解答】解：64.8+1.8=36 8- 6.691.3;0.65X3.842.515.【解答】解：9.4+11=0.8*1

46、44+12=1214.2-11=1.216.【解答】解：75.60,18=42025.6).032=8002.78 X1.8=5.0045.63 浴”0.9210+3.3弋 3.17 .【解答】解：30叼勺4.2960.93.219.025兇.9弋318 .【解答】 解：(1) 6.21 0,03=207 (2) 10.845=0.24 (3) 8.540.7=12.2 (4)72.90.9=8119 .【解答解：S50.966.5=7.849.253.7=2.5 15-74=0.22 ®6.72 4.2=1.620 .【解答】解：(1) 1.250,25=5 (2) 8.40.56

47、=15 (3) 8.540.7=12.2 (4)78.6-11=7.121 .【解答】解：4.5X0.18=0.812.346-2.3=1.0270.3X3.6=253.085.062.2=2.322 .【解答】 解：2.6X0.25=0.6529.90.46=65*4.65-1.33.58 23.【解答】 解：©24.6),16=153.75 13.962.32(3)0.325-1.50.22 6.24 W8=7.8 18.3N4.575 19.2"3.224.【解答】解：7.050.94=7.51.713.8=0.454.8397=6.95.7"0.638.2 隹7=14.42.16+18=0.121.8 0.25=7.23.7 隹2=1.625 .【解答】解：(1) 3.90.26=15 (2) 9.35+3.4弋2.8 (3) 0.17.111. (4) 0.1680.7=0.24(5) 4.05+18弋0.23 (6) 4.685.426.【解答】解：21.45 +15=1.4349.04+8=6.13217.6 +34=6.411.736=0