小升初小数除法计算题500道

1、小数除法计算题500道（口算300道+竖式200道）含答案. 口算题（共50小题）1 .直接写出下面各题的得数.弟页共页4.8 +0.8=7.5 -4.5=0.75 +15=3.5 X0.4=0.6 X1.5=4 +0.25=10 +0.01 =10 - 2.05=1.36+2.87+3.64=1.8 X0.4X0.25=2.直接写出得数.2.1+0.7=2+5=1 +0.2=7+8=5.3 +0.53=0.1+0.01 =0.25 X40=6.55.6=1.26-0.6=0.54 +6=3.直接写得数30.2 +2=0.01 +0.5=0.72 +8=4.8 +0.06=6.4+3.6=1

2、+3=10 1.55=1.25 X8=4 . 口算.0.9 +0.03=7.2-2=0.05 X2=0.74 X11 =0.25 X4 +0.25X4=3.1+3.1 =1.32+87.2 F0=1.32+8=6.25 -0.87+0.13=0.4X2.7 X25=5 .直接写得数.2.5 X0.5 W=6.3 +0.3=1.8 X0.5=25.1+4.9=6.直接写出得数.弟页共页6.4 +0.2=0.9 0.89=1.07+8.3=3.6 +10=100 X1.5=8.1+9=4.5 X0.2=11 -3.9=7.直接写得数.5.6 +0.8=6.82 5.2=2.5 X0.04=1 0.

3、5+0.5=9.15 +0.3=17.2 +0.86=1.8 +0.1 =12.5 X0.8 X0=8.直接写得数1.4 X100=2.80 +10=2.4 +100=0.33 X1000=90 +6=0.025 X100=90 +100=0.32+1.98=14.3+5.7=9 X99+9=9.直接写得数.10 +0.01 =0.22+0.8=10 2.05=4 +0.25=0+19.8=0.2 X0.05=1.36+3.64=0.4 X0.25=10 .直接写得数0.25 +0.5=0.32 +0.04=1.25 X4=1.6 +0.4=0.54 +6=5.6 +7=直接写得数.5.09+

4、10=12.5 X0.8=0.5 -.25=45.6 +1 =32.1 X0.2=0.25X6=0.4 X0.5=0.54 -.9=10.2 +0.01 =12.5 X0.8=口算4 5=1.8 +0.03=75 +2.5=0.2 X25.4=3.6+4.4=10 -5.2=3.4 X0.2=7.8 +6=13 .直接写出得数3.6 +0.3=0.56 +28=1.2 X20=14 . 口算3.4 +2=6.3 +0.9=40 X0.41 =直接写得数.0.25+5=6.3 +7=5.6 X100=0.25 X4=36 +0.9=0.64+0.8=0.72 X3=7+5=6.12 +0.5=2

5、.9 -50.2=2.7 +0.3=0.42 -h6=4.12 X2=1.53+2.4=4.8 X0.5=6.4 +80=30.9 X9=10 X4.1 =4.6 +0.5=-h0.9=3.145X100=7.2 +3.6=1 +50=7.6 +7.6=1.25 X4=0.7212.4+4.1=0.01+0.9950-0 +2.5=16 .直接写得数0.35 +5=0 勺 +3=17 . 口算我最棒.0.64 +1.6=2.7+7.2=4.3+2.7=18 .直接写得数0.8 +10=237 -9=0.3 X2=19 4 X5=20 4 X0.5=0+1.5=200 X0.07=25+8=25

6、7+0=0.3 +0.2=4.9 X0=0.72 +0.9=2.7 X0.3=0.25 X4.9=187 +1000=0 X0.008=0.7 X0.9=2 X0.45 X5=10.9 -8.9=24 +0.3=4 +0.8=0+58=0.001 X100=第页共页6.0805 X1000=24 X5=8.4 +4=3.6 -h0.2=0.72 -h90=1.1 X0.8=0.56+4.44=1.25 X5 X8=2.9+3.7+2.1 =7.6X8+2.4X8=0.4X0.25=19 .直接写得数.0.63 +9=5.4 +1.45=0 X4.65=3.5 +0.7=1 -0.25=4 X0

7、.5=0.1 +0.05=3.3 +0.1 =2.7 +0.90.36 -h0.12=0.14 +2=9.6 +6=20 .直接写得数.21 .请你直接写出得数4.8 +0.8=7.5 0.45=5.7+3.3=1 -0.25=6.2 +0.62 1 =0.75 +1.5=0.2 +4=0.21X4=1.2 X60=5+3.2 +0.8=22 .直接写出得数.0.72 +0.9=23.7+2.63=4.8 +0.4=0.5 +2=6.5 5.6=1 -0.25=8 W8=10 44=0.4 X0.8=0.48 +0.8=0.35 X4=0.3 -.15=23 .直接写出得数1.2 +0.4=2

8、+8=4 +0.5=0.72+4=0 y.32=3.6+1.8=1 0.73=0.24+0.6=6.4 +1.6=0.125 X80=0.5 X0.8=13.2+0.6=24 .直接写得数.0.8 0.35=2.5+0.5=0.42 .6=3.5+0.01=0.54+0.6=0.25 X4=12.5 X0.8=0.2 X50=0 +3.68=0.3 X0.2=25 .直接写出得数.0.56 +0.7=0.6+0.65=3.9 +1.3=12+0.03=5.2 +0.13=99 X1.01 =13.5 -2.8 7.2=25X0.32 X125=26 . 口算3.6 +1.2=8.1 +9=4.

9、8 +0.6=1.25 X8=99 +0.9=25 +0.05=88 +0.008=1 +2.5=27 .直接写得数.0.64 +0.32=0.7X1.2=7.2 + (0.8 X9)40 X0.25=0 +4.8=2.9 +2.9=0.3X0.6=0.07X50=100 X0.07=22.1 X1 =28 . 口算0.02 X0.1 =12 -4.3=36 +0.01 =0.8 X0.125=2.3+0.8=0.36 +0.4-9=29 . 口算.3.6 +1.2=4.4 +4=4.8 +0.4=1 -0.25=30 .直接写得数.6.4 +8=9.8 +0.14=4.8 +16=0.63

10、M=8.7 +29=0.99 +9.9=5.5 W11 =13.8 .9=31 .直接写出得数.0.56 +8=0.07X10=3-1.9=1.2 X0.1 =51 +0.3=4.3+15.37=2.9 X10.02 12.1 +3.9 =6 +0.58 =弟页共页1 -.25=0.78 +6=2.4 +24=6.6 +0.6=50.5=34 +0.2=0.8 X7=8 X0.6=70 X0.12=32 .直接写出得数.3.6 +3=7.8 +6=9.9 -9=56.7 +7=4.8 +4=3.9 +13=3.6 +12=8.1 +27=0.04 +2=0.88 +4=1.25 5=7.5 +

11、0.05=33 . 口算34 .直接算出得数.2.1 +2=3.8+1.02=7.5 X0.4=2x 0.7x=10 +8=0.8 X0.6=3.2 X0.5=9.6 -h0.06=3.57 -h0.7=4.5+0.76=35 .直接写出得数.22.4 +4=0.25 X4=0.21 +7=5.6 +7=1.2 X5=42 +3=6.12 -h0.6=0.54 -=38.5 +5=24 -0.8=36 .直接写出得数.1.6 +0.4=7.2 +8=4.2 +0.01 =2-3.6 +1.8=4 5=4.6 +0.46=5.4 +1.8=0 +21.3=37 . 口算1.2 +3=0.48 &

12、quot;4.6 +23=6.8 +4=0.72 +12=0.72 +4=9.6 +6=5.2 +13=12.5 5=0.12 +5=38 .直接写得数.56 +100=1.29 -0.29=0.56 X100=5.35+2.5=0.625 X100=8.07 X10=7.34 X0=39 . 口算0.42 +0.6=7.8+1.2=5-2.1 =3.5+0.9=3.31+1.2=5 X0.6=10 -h0.1 =359+402=1.2+0.08=25 X4 +25 X4=2.4 +0.24=0.1 X0.1 =18.6 - 7=4X (25 X14 )=0.25+0.2+0.75=1.25

13、X2.3 X8=2.5 -2.5 X0.4=4216 +5=35 +70=43 .直接写的数0.75 +0.5=16.8 +0.4=44 . 口算下面各题.5.74 +10=22 +4=95 +5=48 +100=1.3 X4=1.6 -h0.4=2.8 -0.28=4.2 -0.07=10 -9.9=0.67+0.3=8.9 X100=2.5 X4=8 +16=0.9 X60=1.04 +2=9.1 +7=1.5 X8=0.39 +39=0.25 +8=0.05 X300=0.45 +9=7.2 +9=0 X5.8=4 X8 X0.25=41 . 口算.2.4 +2=48 +0.6=0.24

14、 +0.2=4.8 +6=2.4 +0.2=4.8 +0.6=9.6 +0.3=96 +3=40 .直接写出得数.直接写出得数12.6 +3=6.06 +6=12.6 刊.6=1.8+6=7 +3.5=0.5 +0.25=0.16 X4=第|页共页0.4 +0.8=1.2 X5=0.64 +2=0.56 +0.7=0.6+0.65=3.9 +1.3=45 .计算.12.8+4=31.55=39.6+4=97.8 +6=11.7+3=29.4+2=83.5 +5=95.2+4=67.8+2=46 . 口算：0.96 +8=0.08+ 0.2+ 0.36+ 5.1 +1.7=0.01=0.05=0

15、.18=0.54+ 4.8 +0.24=10 -0.92=0.9 +45=2.5 X4 +2.5 X4=0.6=47 .直接写出得数.2.5X4=10+0.1=2.8+0.4=4.5+0.15=7.24.9=1.5X6=15+0.5=5 +2=1.2+0.03=1.3X3=48 .直接写出得数.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=8.6 X100=148.3 +100=49 .直接写出得数.3.6 +1.2=0.72 -0.9=2.6+13=4.8 W

16、.4=4.4 +4=0.78 -h6=7.2+0.4=1 +0.25=7.1 X0.4=4.5 刊.15=1 -0.07=0.42 W.7=弟1页共.贞50 .直接写得数0.29 +100=170 X100=5+1000=19+0 +19=423 - (100+23 )320 +100=90 - 26 - 13=0.56 X100 +1000=24义38 - 25+12-500 -100 X1000=99+24=25=0.26 X1000=（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数）1.092 +0.42=210 +

17、1.4=8.9 +0.56 =3.列竖式计算.69.02 +3.426.8 X0.3546.8 +3.4 （保留一位小数）第页共页4 .列竖式计算.2.05 +250.13 -H0.17 （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 +0.4624 X0.3740.32 -1.68 .6 .竖式计算2.1 +0.7=7 4.35=7.2+4=7 .用竖式计算并验算.2.76 X24=12.6 +0.28=第页共49页8.用竖式计算.220.5 +15=（用乘法验算）2.64 X1.09=（得数保留两位小数）第页共页6.3 +0.125

18、=0.84 X1.65=9 .列竖式计算.（后两题得数保留两位小数）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）2.05 X0.16 （验算）78.6 +11=（商用循环小数表示）6.21 W.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 +7.8 =数保留两位小数） 28.28 +0

19、.4=*0.303 5=13 .列竖式计算（带的保留两位小数）第页共.页1.57 +3.90.58 X0.2470.7 +33 （商用循环小数表弟页共页示）14 .竖式计算（得数保留1位小数）带的验算64.8 +1.8 =8 6.69 =0.65 X3.84 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 刊.0322.78 X1.85.63 +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）

20、25 +9.9 （保留整数）18 .用竖式计算(1) 6.21 -0.03= 10.8 +45=(3) 8.54 +0.7=(4) 72.9 +0.9=19 .竖式计算.(第、题验算) 6.72 +4.2= 50.96 +6.5 9.25 +3.7= 15+7420 .用竖式计算(1) 1.25 +0.25=(2) 8.4 0.56=第页共页(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.4.5 X0.18=2.346 +2.3=验算： 70.3 X3.6=5.06 +2.2=22 .用竖式计算（带*得数保留两位小数）2.6 X0.2529.9

21、S46*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 田；0.325 +1.5 ;6.24+0.8; 18.3 +4; 19.224 .用竖式计算，并指出哪些是循环小数.第页共页7.05 +0.941.71 +3.84.83 +0.75.7 -h92.16 1838.2 +2.71.8 +0.253.7 +2.2 .25 .用竖式计算（1） 3.9 +0.26 %（2） 9.35 +3.4=（得数保留一位小数）(3) 0.17+0.11(商用循环小数表示)(4) 0.168 +0.7 =（5） 4.05 +18=（得数保留两位小数）（6）

22、4.68y.4=（商用循环小数表示）26 .用竖式计算21.45 +15 ;49.04 +8;217.6 +34 ;第页共.页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 +0.15 1.03 +1.2 1.07 9.2 9.45 +0.32 13.51 +0.13 17.96 -H0.36 .第页共页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.47.04 +5.6=3.28 X2.7=0.764 X1.2 =52.92 +0.27=8+1.28=15.36 +12=29 .列竖式计算:0.195 +

23、0.133.6 S876.76+0.766+2.47.085 +0.659.72+0.27 .30 .竖式计算.(1) 0.38 X0.23(2) 5.79 X3.6(3) 4.6 X0.25(4)6-24(5) 52.95 +75(6) 3.01 勺 (7) 4.95 11(8) 84.01 +31 (用乘法验算)(9) 0.646 +19(10)4.7 X0.59 .31 .计算下面各题，并用乘法验算(4) 0.646 +19 .(1) 15.6 +12(2) 328 +16(3) 1.35 27后面两道题要验算）+2.1 =32 .用竖式计算下列各题.（除不尽的保留两位小数,45.15

24、+1.5=52.65 +1.3=15.758.42+0.6=0.436 +0.2=9.25。7=33 .列竖式计算1.35 +156.6 +443.5 +2918.9 +2737.5 +628.6 +1120.4 +243.64 +52 .34 .竖式计算0.448 +32=14.3+6.7=3.8 X0.26=11.32 - 8.95=35 .用竖式计算1.26 +1.8=64 X5.04=43.5 刊.29=验算5.63 +6.1 （得数保留两位小数）27.8 +2.5=验算 9.8 X0.75=36 .笔算5.02 X4.8=1.35 X320=26 +0.13=48 +2.3 =（得数

25、保留两位小数）37 .用竖式计算，加号的要验算.0.756 +0.18=0.35 X0.48=6.02 5.94=38 .用竖式计算96.6 +42（有的要验算）7.79 +956.3 +0.4270.350.14 +0.0842 +8.39 .用竖式计算7.8 +75=2.55 +2.5=2.5 X1.04=40 .列竖式计算3.5 X10.8表小）80.93 +26.7 （精确十分位）1.42 +1.1 （商用循环小数41 .计算下面各题，除不尽的用循环小数表示商43.8 +1213 -1142 .竖式计算30.6 +450.12 +0.2530.1 +334.06 +0.587 +0.3

26、519 -12X54.6 +0.91 .11.62 +95.6 +0.07 .43 .列竖式计算.+3=（商用循环小数0.58 X0.08=（结果保留两位小数）0.54 +0.018=13.6表小）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0.73 X2.157.38 +1.65.95 27.6 （得数保留两位小数）46 .用竖式计算.3.38 1830.9 X2.75.95 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 刊.08=（验算）48 .竖式计算.70

27、 +5.6=227.8 +0.34=7.525 .38=49 .用竖式计算下面各题，除不尽的保留两位小数弟页共页8.65 +0.251.8 +127.250 .用竖式计算.7.02 X1.329.83 M.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=310 +0.01=100010 2.05=7.950.75+ 3.5X15=0.050.4=1.40.6X 41.5=0.90.25=161.36+2.87+3.641.8 X 0.4=7.870.25=0.182.1 +0.7=32 +5=

28、0.41 +0.2=57 +8=0.87510.1+ 0.25义6.5-11.26+ 0.01=1040=105.6=0.90.6=2.13 【解答】解30.2+ 0.01+ 0.72+ 4.82=15.10.5=0.028=0.090.06=806.4+3.6=1I !1 +3=0.;10-1.25 X8=1001.55=8.45解:5.30.53=100.546=0.09解:解:5.6 +0.8=76.82-2.5X15.2=1.620.04=0.10.5+0.5=19.15- 17.2+ 1.8 0.1=1812.5 义 0.80.3=30.50.86=200=00.9 +0.03=30

29、7.2 2=5.20.05 X2=0.10.740.25 X 4 + 0.25X 3.1 +3.1=11.32+84=161.32+8=1611=8.147.240=0.186.250.4 X2.70.87+0.13=5.5125=275.【解答】解：6.3+0.3=211.8 X0.5=0.925.1+4.9=302.5 X0.5 X4=56 .【解答】解:6.4 +0.2=320.91.07+8.3=93.61001.5=1500.89=0.018.1+9=17.1.374.50.2=0.910=0.36113.9=7.18 .【解答】解:第页共页1.4100=14090 +6=1514.

30、3+5.7=20X 2.8010=0.280.025100=2.5999+9=900+ 2.4100=0.024X 90+100=0.9x0.33X1000=3300.32+1.98=2.30.22+0.8=1.020.20.05=0.019 .【解答】解:10+0.01=10000 +19.8=0102.05=7.95义 1.36+3.64=54 刊.25=160.4义0.25=0.110 .【解答】解：0.25+0.5=0.50.32 +0.04=8 1.25 X4=51.6 +0.4=40.54 +6=0.095.6 +7=0.811 【解答】解:5.09-12.5X 0.5+ 45.6

31、 +1=45.632.1X10=0.5090.8=100.25=20.2=6.420.25 X6=1.50.4义 0.54+ 10.2-12.5X0.5=0.20.9=0.60.01=10200.8=1012 【解答】解：二二23.6+4.410- 3.4义 7.8+6=1. 3=85.2=4.80.2=0.6813 .【解答】解：3.6 +0.3=126.3-5.6 X100=5600.25X4=17=0.90.56-36-0.64+0.8=1.40.72X3=2.1628=0.020.9=4041.2 X20=247+5=1.46.12-2.9+ 50.5=12.240.2=2.914 【

32、解答】解:3.4 +2=1.72.7 +0.3=90.42+ 4.12X6=0.072=8.246.3 +0.9=71.53+2.4=34.8X 6.4.930.5=2.480=0.08弟页共页40X 30.9X 10X4.1=414.60.41=16.49=278.10.5=9.215 【解答】解：0.25-0.72- 3.145义 7.25=0.050.9=0.8100=314.53.6=212.4-0.01+0.99=7.6 +7.6=11.254.1=314=51 +50=0.0250- 0 +2.5=5016 .【解答】解:0.350.30.30.75=0.072=0.60.2=1.

33、50.9=0.630 勺 +3=02.44.9 X0=00.455=1.25=4.517 【解答】解:0.641.40.72 -.9=0.810.91.6=0.40.5=0.78.9=22.7+7.2=9.0+1.5=02.7 X0.3=0.81240.3=804.3+2.7=72000.254 +0.8=50.07=144.9=1.22518 .【解答】解:0.8 +10=0.825+8=3187+ 0+58=031000=0.187237 - 9=226257+0=0 X0.008=00.001257100=0.16.0805X 24X1000=6080.55=12019 .【解答】解:第

34、页共页0.639=0.071 4.25=42.7 +0.9=3+ 5.4 + 1.453.724 X0.5=20.36 +0.12=3=0X4.65=00.10.05=20.143.50.7=5+ 3.30.1=33+ 9.62=0.076=1.620 .【解答】解：8.4 +4=2.13.6 +0.2=180.72+90=0.0081.25 X 5 X1.1X 0.56+4.44=50.8=0.888=502.9+3.7+2.1=8.721 【解答】4.8 +0.8=60.751.5=0.522 【解答】0.720.9=0.86.55.6=0.90.40.8=0.3223 【解答】1.2+0

35、.4=30+X 0.40.25=0.15.7+3.3=90.21X4=0.844.8+0.4=128+0.8=100.35 X4=1.40.62 7.6 X 8+2.48=80解：7.5-0.45=7.05+ 0.2 +4=0.05解：+ 23.7+2.63=26.33-1 +0.25=4解:2 +8=0.254 +0.5=80.724=0.183.6+1.8=5.1 0.24义 0.48 -h0.8=0.61； 6；6。2=72：20.5+2=0.2510 +4=2.50.3+0.15=2第页共页5.32=040.73=0.270.6=0.4第页共页6.4+1.6=424 【解答】2.5+0

36、.5=50.25X4=125 【解答】0.560.7=0.85.20.13=4026 【解答】3.6 +1.2=399-0.9=1100.125 X 0.5X 13.280=100.8=0.40.6=22解：0.42+0.6=0.712.5义0.8=103.50.01=3500.2 X50=10+ 0.540.6=0.90 +3.68=00.8-0.35=0.450.3X0.2=0.06解:0.6+0.65=1.3.9 +1.3=312+0.03=400259913.52.825 X 0.321.01=99.997.2=3.5125=1000解:8.1 M=0.94.8 +0.6=81.258

37、=1025880.05=5000.008=110002.5=0.427 .【解答】解:第页共页0.64+ 0.7义 7.2 + (0.8 X9) =140X 0+4.8=00.25=100.32=21.2=0.842.9 +2.9=10.3X 0.07 X50=3.5100 X 22.1 X0.6=0.180.07=71=22.128 .【解答】 解：0.02 X0.1=0.00212 -4.3=7.736 +0.01=36000.8 X0.125=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 +0.4=121 刊

38、.25=430 .【解答】解：6.4+ 9.8+ 4.8+ 0.638=0.80.14=7016=0.39=0.078.7+ 0.99+ 5.5+ 13.829=0.39.9=0.10.11=506.9=2弟页共页31 【解答】：0.56 +8=0.071.20.1=0.122.9 X 10.023032 【解答】【3.6 +3=1.24.8 +4=1.20.04+2=0.0233 【解答】【1 刊.25=46.6+0.6=110.0710=0.7510.3=17012.1 +3.97.8 +6=1.33.913=0.30.884=0.220.786=0.135 刊.5=103- 1.9=1.

39、14.3+15.37=19.676+0.58 =109.9 +9=1.13.612=0.31.255=0.252.424=0.1340.2=17056.7 +7=8.18.1 +27=0.37.50.05=1500.8X 8 X0.6=4.870x7=5.60.12=8.434 .【解答】解：2.1 +2=1.053.8+1.02=47.5 X0.4=32x-10+8=1.25.820.8X 3.20.7x=1.3x义 9.6+ 3.57+ 4.5+0.76=50.6=0.480.5=1.60.06=1600.7=5.1.2635 .【解答】解：22.4+ 0.25 X4=10.21+ 5.6

40、+ 1.2 X5=64=5.642 +3=146.127=0.037=0.8+ 0.54+ 38.5+ 24+0.6=10.26=0.095=7.70.8=3036 .【解答】解：1.6+ 7.2+8=0.94.2+ 2 - 3.6 +0.4=44 +5=0.84.6+0.01=4201.8=05.4 +1.8=30 +21.3=00.46=1037 .【解答】解：第页共页1.2+3=0.40.484.66.80.72弟页共页0.724=0.186=0.0823=0.24=1.79.6 +6=1.65.212.538 【解答】解:56 +100=0.561.290.29=10.6255 -2.

41、1=2.9100=62.58.07X10=80.73.5+0.9=4.7.34X0=03.31+1.2=4.51【解答】解:0.425 X0.6=30.6=0.77.8+1.2=9100.1=10040 【解答】解:13=0.45=2.50.56X100=56359+402=7611.2+0.08=1.2825义4=164-252.41.250.24=108=230.12.512=0.06+ 0.12+5=0.0245.35+2.5=7.8518.6 - 7=11.64X(25 X14)=14000.25+0.2+0.75=1.2< 2.3 X2.5 X0.1=0.010.4=1.510

42、0.67+0.3=08.9 X100=8902.5 X4=10第页共页.970.9 X60=540.3939=0.017.2 -9=0.81.04 -2=0.520.258=0.031250 X5.8=09.9=0.18-16=0.51.5 X8=120.459=0.0541 .【解答】2.4-2=1.22.4-0.2=1242 【解答】16+5=3.235+70=0.543 .【解答】0.75解：1.64=47 -3.5=29.1 -7=1.3+ 0.05 X300=154 x 8 X0.25=8解：48+ 0.24+ 4.8+0.6=800.2=1.26=0.84.8+ 9.6 0.3=3296+0.6=83=32解：22+ 48+ 12.6+ 6.064=5.5100=0.483=4.26=1.0195+ 1.3 X4=5.212.6+ 1.8 -6=0.35=190.6=210.5=1.516.8+ 2.8+ 0.50.4=420.28=100.25=244 .【解答】解:4.20.07=601.2 X5=60.6+0.65=1.250.16X4=0.640.64+2=0.323.9 +1.3=35.74+10=0.5740.4 +0.8=0.50.