小学数学六年级下册口算训练(1)

1、286+198=286+198= 314-202=314-202= 12 = = 25 1 3030= = 3 2 1212= = 3 51 - -= = 62 111 ( (+ + +)24)24= = 234 3.2743.274.3.3+3.275.7+3.275.7= = 0.252.6940.252.694= = 10-2.87-7.1310-2.87-7.13= = 35 = = 56 21 = = 53 11 - -= = 26 11 = = 75 4 2525= = 5 11 = = 25 (25+4) 4(25+4) 4= = 0.25800.2580- -450.9450.

2、9= = 2 +2 + 2424 1212 8 =8 = 3434 5=5= 4. 84. 80.60.6 5.35.32.62.6 10103.43.4 2.52.52 2 36362929 2020 6 6 120120 4 4 3003002525 6306303030 4 4 5050 15.915.910.810.8 2626 1313 366366 6 6 262634 =34 = 125125 8 8 4=4= 250250 4=4= 2424 4+564+56 4=4= 8-2.5=8-2.5= 1212 2.5=2.5= 3030 203=203= 6.256.25 8=8=

3、 2.14-0.9=2.14-0.9= 1.5+0.251.5+0.25 4=4= 4 = = 9 12.37-3.25-6.7512.37-3.25-6.75 3/143/146 6 0.510.511717 14147.47.4 5.25.21.31.34 4 1.921.920.040.04 12 24=24= 7 334/5=4/5= 0.870.870.490.49 4.94.90.70.7 4.94.90.70.7 31 + + 105 4 100100 5 47 _ _= = 510 47 = = 510 85 = = 58 75 = = 189 0.750.751515 101

4、05.45.4 0.650.654.354.35 45453535 12=12= 3 8=8= 4 7 100100 25 5 90=90= 8 25251212 33 = = 1616 98 = = 2613 0.870.870.490.49 0.870.870.490.49 3 3 6060 9=9= 3.173.178.13=8.13= 小学数学六年级下册口算训练（小学数学六年级下册口算训练（3 3）小学数学六年级下册口算训练（小学数学六年级下册口算训练（4 4） 用用时：时：分分秒秒用用时：时：分分秒秒 31 = = 44 35 + += = 88 97 = = 1010 55 + +

5、= = 66 114 = = 2121 177 + += = 1818 113 = = 1616 82 = = 1515 51 = = 88 71 + += = 1212 7.2+2.8=7.2+2.8= 5.15.117=17= 2.52.54=4= 1.251.258=8= 0.170.173=3= 0.230.233=3= 1.51.50.6=0.6= 1.231.233=3= 1.21.27=7= 0.50.5100=100= 8.88.81.1=1.1= 6.96.92.3=2.3= 1.31.39=9= 0.10.10.1=0.1= 8.58.517=17= 434326=26=

6、400+3000=400+3000= 23002300700=700= 7878 9=9= 89089080=80= 820+60=820+60= 800+600=800+600= 6 6 8=8= 60+470=60+470= 50+500=50+500= 10001000400=400= 200+710=200+710= 900+1500 =900+1500 = (38(3829)29) 3 =3 = 2402404040 8=8= 580580300=300= 780+5780+5 6=6= (54+18)(54+18) 8=8= 828227=27= 62+23=62+23= 37+4

7、3=37+43= 160+40=160+40= 5 5 时时+6+6 时时= = 60060030=30= 2424 7=7= 1.251.258 =8 = 91091070 =70 = 23 = = 1515 4.24.22 2 = = 8.9+3.8+1.1=8.9+3.8+1.1= 3 30.750.752=2= 0.20.25 53+0.25=3+0.25= 12.12.5 59-12.5=9-12.5= 0.10.15 50.2+0.17=0.2+0.17= 1.24+0.361.24+0.366=6= 0.88-0.0.88-0.8 80.1=0.1= 0.20.25 50.70.

8、74=4= 2.72.71.51.52=2= 2 25 53.93.90.4=0.4= 1.21.25 57+1.25=7+1.25= 2.36-0.992.36-0.99 3. 3.4 40.4=0.4= 0.57+1.53=0.57+1.53= 656550=50= 0.70.72 25=5= 1.14+0.98=1.14+0.98= 0.910.910.13=0.13= 7.067.062=2= 0.160.160.8=0.8= 8.78.72.9=2.9= 7 71.4=1.4= 5 50.2=0.2= 0.840.844=4= 7.9-0.6=7.9-0.6= 3 3 = = 84

9、8.1 8.1 3 3= = 0.540.540.46 =0.46 = 91 = = 427 578578216216 72720.80.8 10.110.13 03 0 2 20.20.2 10100.50.5 1 1 3 2 18184 =4 = 10100.1 =0.1 = 410410210210 4.24.20.20.2 1.81.84 4 7.25+2.757.25+2.75 = = 4.574.576.436.43 2 8181 9 9.89.89898 43 = = 52 0.70.7 公顷公顷= =（）平方米）平方米 测试时间：测试时间：年年月月日日测试时间：测试时间：年年月

10、月日日 小学数学六年级下册口算训练（小学数学六年级下册口算训练（5 5）小学数学六年级下册口算训练（小学数学六年级下册口算训练（6 6） 用用时：时：分分秒秒用用时：时：分分秒秒 测试时间：测试时间：年年月月日日测试时间：测试时间：年年月月日日 7207208080 6606601111 900900680680 2302302020 12128 8 32323 3 300300 1010 4444200200 36003600 900900 320320 8080 3030 150150 1616 2525 1.51.50.90.9 4 46 6 2525 4545 989890=90= 5

11、1-8.56-1.44=51-8.56-1.44= 3535 4 439=39= 360360301=301= 0.30.30.7=0.7= 1 10.64 =0.64 = 0.580.580.5 =0.5 = 5.7+4.5 =5.7+4.5 = 10100.1=0.1= 5 5 6 =6 =1212 30=30= 9 9 3 3 33 3 = =8080 40=40= 4 2 2 吨吨 5050 千克千克= = （） 100100 20=20= 吨吨 26.2626.262626 = = 9 1 = = 427 100100 4=4= 240240 40=40= 920920 4=4= 3

12、00300 60=60= 160160 5=5= 4 4 250=250= 0 0 518=518= 1010 76=76= 3636 10=10= 1515 6=6= 2424 3=3= 5 5 18=18= 2626 4=4= 403403 15=15= 467467 18=18= 180180 50=50= 404404 4=4= 78+32=78+32= 280+60=280+60= 0.8+0.2=0.8+0.2= 720720 90=90= 740-300=740-300= 91091070 =70 = 7 71414 = = 7 71.41.4 = = 1.51.50.2 =0.

13、2 = 1.51.50.5 =0.5 = 32 = = 85 177 + += = 1818 113 = = 1616 35 + += = 88 97 = = 1010 55 + += = 66 114 = = 2121 177 + += = 1818 113 = = 1616 82 = = 1515 51 = = 88 71 + += = 1212 35 + += = 88 97 = = 1010 55 + += = 66 9.89.89898 9.89.8100100 2 8181 9 82.582.53 3.25.25 0.60.6 100 =100 = 7.37.3 1000 =100

14、0 = 72007200 2525 4=4= 8 8 (40(4020)=20)= 4242 (90(90 3030）= = 1818（2424 4 4）= = 10.5-1.5-3.5=10.5-1.5-3.5= 4.6+2.3+7.7=4.6+2.3+7.7= 145145 7878 125125 32=32= 156156646436=36= 6.84+5.16=6.84+5.16= 1.51.50.2 =0.2 = 11 23 1 1+1+= = 2 1- 20%1- 20% = = 1 +1 + 3 = = 4 1+60%1+60% = = 2 2 2 = = 3 0.250.250

15、.75 =0.75 = 1313(2(2 1.51.55=5= 7 7 ) ) = = 1313 56.356.3100100 小学数学六年级下册口算训练（小学数学六年级下册口算训练（7 7）小学数学六年级下册口算训练（小学数学六年级下册口算训练（8 8） 用用时：时：分分秒秒用用时：时：分分秒秒 测试时间：测试时间：年年月月日日测试时间：测试时间：年年月月日日 2 15 13 = = 25 21 + + = = 36 6 6=6= 7 7 7 7 = = 3 13 = = 68 41 - - = = 52 31 = = 42 4 4 = =1.251.258 =8 = 91091070 =7

16、0 = 23 = = 1515 0 01 1 0.020.02= = 3.7+7.6 = 3.7+7.6 = 4.24.2 0.1 =0.1 =1001001.011.01 100100 0.35 =0.35 =18.218.20.280.28 3.7+7.6 =3.7+7.6 =0.070.074.24.2 91 2 136 4.24.22 2 = = 3 3 = = 84 1001001.011.01 8.1 8.1 3 3= = 0.540.540.46 =0.46 = 91 = = 427 18.218.20.280.28 3.7+7.6 = 3.7+7.6 = 4.24.2 0.07

17、0.0766006600 22=22= 10001000 2525 8 881008100 90=90= 3.173.178.13=8.13=200200 0=0= 2525 125125 4 4 8=8=3.173.178.13=8.13= 55 = = 2525 10=10= 612 89 201201153153 = = 924 3.53.50.80.8 578578216216 1313 4040 72720.80.8 23.6+34.723.6+34.7 10.110.13 03 0 303017.517.5 2 20.20.2 1818 4242 10100.50.5 2525 3

18、6361 1 3 2 6161 303056+38=56+38= 604604104104646426=26= 910910 1313 7 + 57 + 5 6 =6 = 5 5 5 + 9 =5 + 9 = 8 8 2 + 7 =2 + 7 = 5 5 7+ 8 =7+ 8 = 7 7 8+ 9 =8+ 9 = 8 8 4 + 6 =4 + 6 = 3 3 9 + 8 =9 + 8 = 5 5 7 + 5 =7 + 5 = 7 7 9 + 8 =9 + 8 = 60-36-18=60-36-18= 1010 5 =5 = 6.36.3 0.07=0.07= 12-412-4 2=2= 3.8

19、+1.3=3.8+1.3= 4 4 2.5=2.5= 37+28+12=37+28+12= 57+2357+2342=42= 55 = = 612 89 = = 924 45453535 12=12=18184 =4 = 4804809696 6 =6 =10100.1 =0.1 = 125125 8 8 4=4= 410410210210 250250 4=4= 4.24.20.20.2 2424 4+564+56 4=4= 1.81.84 4 8-2.5=8-2.5= 7.25+2.757.25+2.75 = = 1212 2.5=2.5= 4.574.576.436.43 2 3030

20、203=203=8181 9 6.256.25 8=8= 9.89.89898 43 2.14-0.9=2.14-0.9= = = 52 1.5+0.251.5+0.25 4=4= 0.80.8 公顷公顷= =（）平方米）平方米1212 4 =4 =125125 2 2 8 8 小学数学六年级下册口算训练（小学数学六年级下册口算训练（9 9）小学数学六年级下册口算训练（小学数学六年级下册口算训练（1010） 用用时：时：分分秒秒用用时：时：分分秒秒 测试时间：测试时间：年年月月日日测试时间：测试时间：年年月月日日 0.30.330=30= 5. 5.7 70.6=0.6= 0. 0.9 90.

21、1=0.1= 7 70.9=0.9= 2. 2.2 20.5=0.5= 0.60.66 60.6=0.6= 0.60.66 60.06=0.06= 0.40.40.7=0.7= 0.40.40.2=0.2= 0. 0.5 50.9=0.9= 0.80.80.4+0.01=0.4+0.01= 6 60.9-0.2=0.9-0.2= 0.060.0610+0.5=10+0.5= 8 80.7-0.5=0.7-0.5= 4 40.09-0.3=0.09-0.3= 0.80.80.3+0.2=0.3+0.2= 10100.4-0.1=0.4-0.1= 0.70.72+0.7=2+0.7= 6 60.5

22、+0.4=0.5+0.4= 0.20.23-0.6=3-0.6= 2.52.57.47.40.4=0.4= 8 83.93.90.125=0.125= 51+51+（ ）=100=100 150+150+（ ）=200=200 410+410+（ ）=500=500 （）+26=73+26=73 240+240+ （） =370=370 （ （） ） 5 5 573573431=431= 6 =6 = 9 9 3 3 33 3 = =100+45100+455=5= 4 2 2 吨吨 5050 千克千克 = = 8 8 9 9558=558= （）吨）吨 828227=27= 26.2626.

23、262626 = = 62+23=62+23= 4 27 = = 37+43=37+43=91091070 =70 = 160+40=160+40= 7 71414 = = 91 150+150+ （） =280=280 620+620+ （） =900=900 540+540+ （） =620=620 （） 5 5 时时+6+6 时时= = 7 71.41.4 = = 60060030=30= 1.51.50.2 =0.2 = 2424 7=7=1.51.50.5 =0.5 = 32 = = 85 13013050=50= 9.89.89898 800080005000=5000= 180+

24、180+ （） =400=400 710+710+ （） =900=900 250+250+ （） =400=400 440+440+ （） =560=560 380+380+ （） 51-51-（）=8=8 320-320-（）=110=110 340-340-（）=180=180 （）-43=8-43=8 （） -140=290-140=290 （） -360=140-360=140 80+640=80+640= 9.89.8100100 2 960960600=600= 8181 9 3535 分分5 5 分分= = 82.582.53 3.25.25 3 3 6+5=6+5= 1.51

25、.50.2 =0.2 = 11 2424 6+3=6+3= 23 1 1+1+= =6464 (8(8 8 8）= = 2 6262 8=8= 1- 20%1- 20% = = 702070206245=6245=1 +1 + 912+65+83=912+65+83= 3 = = 4 1+60%1+60% = = 2 2 2 = = 3 7070(19+25)=(19+25)= 0.30.30.250.254=4= 0.80.83.33.31.25=1.25= 2.72.712.512.50.8=0.8= 90-90-（）=18=184848 6 6 9 =9 = 0.250.250.75 =

26、0.75 = 1001004040 8=8= 1313(2(213 13 ) ) = = 7 7 （） -270=440-270=440 62-62-（）=18=185656 8+25=8+25= 9 90.15=0.15= 小学数学六年级下册口算训练（小学数学六年级下册口算训练（1111）小学数学六年级下册口算训练（小学数学六年级下册口算训练（1212） 用用时：时：分分秒秒用用时：时：分分秒秒 测试时间：测试时间：年年月月日日测试时间：测试时间：年年月月日日 27 = = 99 1111 360360 18=18= 2323 7 7 7 506506 4 =4 = 10 11 561561

27、 4 =4 = = 22 5.6-3.27=5.6-3.27=660660 3333 2 2 9.69.68=8= 2525162162 9.59.55=5= 125125 5959 0 0 2.42.45=5= 0.90.9 6 =6 = 1 10.01=0.01= 0.240.24 2 =2 = 8 81.6=1.6= 25.3+6.27=25.3+6.27=636636198 =198 = 646424=24= 3.63.60.36 =0.36 = 11 = = 22 41 5656 200200 = = 52 33 4646 万万+16+16 万万= = = 44 600600 50=

28、50= 0.50.50.25 =0.25 = 0.20.2 0.5 =0.5 = 4.54.51.5=1.5= 1.2-0.8 =1.2-0.8 = 0.350.355=5= 0.460.46 2=2= 4.44.44=4= 7.2 + 2.8=7.2 + 2.8= 9.69.60.8=0.8= 4.94.9 3.5=3.5= 0.36+0.64=0.36+0.64= 2.12.17=7= 27+456+73=27+456+73= 0.250.258=8= 0.960.96 0.3=0.3= 3.33.30.3=0.3= 8.48.4 4.2=4.2= 40+7540+75 5 5 (32+4

29、3)(32+43) 3=3= 3 3 6060 9=9= 125125 8 8 7=7= 800-24800-24 5=5= 100-300100-300 6=6= 450450 5 5 2=2= 5.55.52.8=2.8= 0.18+1.8=0.18+1.8= 0 00.875=0.875= 80807070 .74.741010 10100.630.63 7.27.2100100 1001000.180.18 2 1212 = =1616 70=70= 3 2 350-103=350-103=12 12 = = 3 3 260260 3=3= 25 = 25 = 5 41 560560

30、5 5 8=8= 99 16 125125 2 2 8 8 37 16 3.5+3.53.5+3.5 3=3= 1211 1 41500500 0.001=0.001= 2 44 12-6.2-3.8=12-6.2-3.8= 77 11 100100 0.35=0.35= 45 2 0.10.1 0.02 =0.02 =3 15 11 35 1 100100 0.35 =0.35 =12 8 276 3.7+7.6 =3.7+7.6 = 1111 3 1001001.011.0133= = 2 18.218.20.280.28 0.80.84 =4 = 4.24.2 0.1 =0.1 =(71

31、0+190)(710+190) 6=6=0.0050.00510001000 420g+580g=420g+580g=56.356.31010 300+700=300+700=0.070.071010 5656 20020016.516.5100100 40+7540+75 10108.48.4100100 小学数学六年级下册口算训练（小学数学六年级下册口算训练（1313）小学数学六年级下册口算训练（小学数学六年级下册口算训练（1414） 用用时：时：分分秒秒用用时：时：分分秒秒 测试时间：测试时间：年年月月日日测试时间：测试时间：年年月月日日 2 15 13 = = 25 21 + + =

32、= 36 6 6=6= 7 7 7 7 = = 3 13 = = 68 41 - - = = 52 31 = = 42 4 4 = =7207208080 6606601111 900900680680 2302302020 12128 8 32323 3 300300 1010 4444200200 36003600 900900 320320 8080 89 = = 924 4 4 平方千米平方千米 （） 公公 5000050000 公顷（公顷（）平方千米）平方千米3535 分分5 5 分分= = 25251251254 48= 8= 12 = = 63 4 1 1 9 11 42 2 2

33、525= = 15 6 6=6= 7 7 7 7 = = 3 45 = = 512 89 = = 924 4 4 0.250.251 1 4 4 5 5 300300 平方千米（平方千米（）公顷）公顷 8000000080000000 平方米（平方米（）平）平 方千米方千米 1010 公顷（公顷（）平方）平方 米米 6 6 角角 5 5 分（分（）元）元 3.73.7 米（米（）米（）米（） 分米分米 1515 厘米（厘米（）米）米 0.36+0.64=0.36+0.64= 2 4 4 = = 15 525525 千克（千克（）吨）吨 800800400400 240024008 8 3600

34、3600900900 4004001515 1 1 1= =810810 30=30= 5 3 1 1= =2525 8 =8 = 4 6 45 + 3845 + 38= =2 2= = 7 22 = =0.8750.875 24 =24 = 33 42 4.24.2 0.07 =0.07 =+ += = 99 33 1.061.060.94=0.94=+ += = 44 51 8+78+7 5 =5 = 66 56 3.23.2 25=25=+ += = 77 300300100100 2=2= 7 2 99 11 (54+18)(54+18) 8=8= 4646 万万+16+16 万万=

35、=2323200200 600600 50=50=280280630630 1616 70=70=3030700700 10010030=30=40405050 260-42=260-42=54005400900900 6060 5 5 6=6=3203208080 1.51.5 0.08=0.08= 810810 30=30= 2525 8 =8 = 1 1= = 4 4 0.250.25( ( 4)4) 1515 6 6=6= 7 7 7 7 = =57.357.3100100 3 1 5 3 1 1= = 4 6 2 2= = 7 35 + += = 88 97 = = 1010 125

36、125 2 2 8 8720720140140 2424 6 636362828 27002700 90=90=96963 3 11 35 1 4646 万万+16+16 万万= =12 8 600600 120=120= 1.61.66=6= 201201153153 小学数学六年级下册口算训练（小学数学六年级下册口算训练（1515）小学数学六年级下册口算训练（小学数学六年级下册口算训练（1616） 用用时：时：分分秒秒用用时：时：分分秒秒 测试时间：测试时间：年年月月日日测试时间：测试时间：年年月月日日 480480 8=8= 210210 3=3= 250250 5=5= 240240

37、8=8= 180180 3=3= 250250 5=5= 250250 5=5= 300300 5=5= 6060 2=2= 200200 5=5= 120120 2=2= 140140 2=2= 280280 4=4= 150150 5=5= 280280 4=4= 810810 9=9= 420420 6=6= 0.070.071010 16.516.5100100 8.48.4100100 404010001000 28.928.910001000 8 8600600 300300 1010 4444200200 36003600 900900 320320 8080 3.143.142

38、0 =20 = 3.143.1430 =30 = 3.143.1440 =40 = 3.143.14500 =500 = 3.143.140.6 =0.6 = 3.143.140.07 =0.07 = 3.143.1480 =80 = 3.143.140.9 =0.9 = 62622 28 8 32324949 68685151 71715959 31312929 91913838 82823939 42428989 81812929 78785252 41414949 52529999 7907905252 2982987 7 8 8698698 4024027979 4104102929

39、3.143.14100 =100 = 23 = = 1515 2302302020 12128 8 32323 3 80807070 3.743.741010 10100.630.63 7.27.2100100 4.24.22 2 = = 3 3 = = 84 8.1 8.1 3 3= = 0.540.540.46 =0.46 = 91 = = 427 578578216216 7 71.41.4 = = 720720 9=9= 210210 7=7= 100100 2=2= 6060 2=2= 200200 5=5= 420420 6=6= 400400 5=5= 6060 3=3= 100

40、1000.180.18 0.0050.00510001000 56.356.31010 8 81.6=1.6= 4.54.51.5=1.5= 0.350.355=5= 4.44.44=4= 9.69.60.8=0.8= 1.51.50.2 =0.2 = 1.51.50.5 =0.5 = 32 = = 85 6969201201 2992991111 4141689689 8181102102 2102106969 3131101101 7070103103 2082083939 9.89.89898 9.89.8100100 2 8181 9 177 + += = 1818 1.81.85=5

41、= 小学数学六年级下册口算训练（小学数学六年级下册口算训练（1717）小学数学六年级下册口算训练（小学数学六年级下册口算训练（1818） 用用时：时：分分秒秒用用时：时：分分秒秒 测试时间：测试时间：年年月月日日测试时间：测试时间：年年月月日日 35+5=35+5=1212 400=400= 4242 7=7=375375299 =299 = 626237=37=714+198=714+198= 15+78=15+78=125125 16=16= 2424 1212 8 =8 = 6464（8 8 8 8）= = 0.8750.875 24 =24 = 4.24.2 0.07 =0.07 =

42、4. 84. 80.60.61.061.060.94=0.94= 5.35.32.62.68+78+7 5 =5 = 10103.43.43.23.2 25=25= 2.52.52 2 15156 6 2=2=930930 6 6 5 =5 = 3232 8+9=8+9=240240 4 4 5 =5 = (50(5018)18) 4=4=420420 35=35= 300300100100 2=2= 363629290.8750.875 100 =100 = 13 2020 6 6 34 120120 4 4 78785252 45+23=45+23=2.5+0.32.5+0.3 3 3 7

43、=7=1212 3030 2727 3=3=12.6+4.212.6+4.2 4747 6=6=12.712.76 6 3003002525 41414949 6306303030 52529999 4 4 505064645454 6=6=13.5+613.5+6 5 5 (41(4134)=34)=5050 4040 9494(35+62)=(35+62)=46.546.523.4=23.4= 6 6 4 4 8=8=240240 2 2 6363 (25(2516)=16)=9.49.40.30.3 7907905252 15.915.910.810.8 2982987 7 2626 1

44、313 8 8698698 366366 6 6 4024027979 （26263434） 5=5= 4104102929 5757 (82(8273)=73)=1414 3 3125125 8 8 4=4= 6969201201 20002000250250 4=453.50.80.8 56056032321313 4040 142142 2424 767623.6+34.723.6+34.7 0 0 2727303017.517.5 2992991111 2424 4+564+56 4=4= 4141689689 8-2.5=8-2.5= 8181102102

45、1212 2.5=2.5= 2102106969 3030（200+3200+3）= =250250 4 41818 4242 1 10.850.852525 3636 78.678.6 10010045453535 12=12= 3.083.08 100010004804809696 6 =6 = 3.5+3.53.5+3.5 3=3= 6.256.25 8=8=500500 0.001=0.001= 2.14-0.9=2.14-0.9=12-6.2-3.8=12-6.2-3.8= 0.250.25 4=4=100100 0.35=0.35= 小学数学六年级下册口算训练（小学数学六年级下册口

46、算训练（1919）小学数学六年级下册口算训练（小学数学六年级下册口算训练（2020） 用用时：时：分分秒秒用用时：时：分分秒秒 测试时间：测试时间：年年月月日日测试时间：测试时间：年年月月日日 0.540.549=9= 20.20.3 34=4= 0.00.08 860=60= 4.68-3.53=4.68-3.53= 5 50.13=0.13= 3.023.022=2= 0.25+0.75=0.25+0.75= 1. 1.3 30.8=0.8= 6.8-0.3=6.8-0.3= 0.210.210.7=0.7= 10-0.9=10-0.9= 0. 0.7 70.6=0.6= 1.14+0.9

47、=1.14+0.9= 0.20.26 650=50= 9.69.61.2=1.2= 4.8-2.6=4.8-2.6= 2.3+5.7=2.3+5.7= 1. 1.5 55=5= 24240.8=0.8= 8-5.3=8-5.3= 3.63.61.2=1.2= 6.8+2.1=6.8+2.1= 0. 0.5 514=14= 8+0.52=8+0.52= 7 70.06=0.06= 14+2.6=14+2.6= 3.2v0.04=3.2v0.04= 1.31.30.5=0.5= 0.720.720.6=0.6= 2.52.50.5=0.5= 402402 5 5 5605604040 7070 8

48、 8 801801 9 9 1818 3 3 200200 8 8 125125 8 8 902902 6 6 1212 2 2 9090 3 3 2525 4 4 72722424 250250 5 5 1201202020 902902 1 1 250250 6=6= 6 6 940=940= 4 4 280=280= 820820 1=1= 530530 9=9= 9 9 520=520= 930930 6=6= 7 7 690=690= 580580 8=8= 690690 6=6= 2 2 630=630= 880880 2=2= 7 7 930=930= 900900 1=1= 3

49、80380 4=4= 0. 0.8 840=40= 4.1-2.3=4.1-2.3= 0.510.513=3= 2 23 30.6=0.6= 6.2+3.8=6.2+3.8= 0.50.50.25=0.25= 6. 6.4 40.5=0.5= 0.34+0.07=0.34+0.07= 0.650.651.3=1.3= 5.8-0.8=5.8-0.8= 6-3.2=6-3.2= 3.6-0.7=3.6-0.7= 4.84.81.6=1.6= 5.65.67 74=4= 2.72.73 30.1=0.1= 9.69.61.61.62=2= 0.320.324 48=8= 0.450.450.50.59=9= 3.93.91.31.