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1、-.1.258+10=1.258+1.2510=10+12.5=22.59123-123+8.8=9123-123-8.8=9000-8.8=8991.21.248.3+8.31.76=8.31.24+1.76)=8.33=24.999991001=99991000+1=99991000+99991=1000899914.86.3-6.36.58.33.7=14.8-6.56.38.33.7=8.36.3+8.33.78.36.33.7=8.310=831.24+0.78+8.76=1.24+8.76+0.78=10+0.78=10.78933-157-43=933-157+43=933-20
2、0=7334821-998=4821-1000+2=3823I3212525=4812525=4258125=1001000.-可修编-.=1000009048268=2600+2600+2600+124826=260026+260026+260026+1248269=100+100+100+48=3482881 43=1290+1591 434=129043+159143=30+373.242.33.75-12.50.42316=3.242.33.75-1.2542.31.6=42.3(3.23.75-1.251.6)=42.3(40.83.75-1.2540.4)=42.3(40.423.
3、75-1.2540.4)=42.3(4x0.4x7.5-1.25x4x0.4)=42.340.4(7.5-1.25)=42.340.46.25=42.3(42.5)=42371.8+181.5-0.50.3=1.8+12-0.15=13.8-0.15=13.656.58+3.58-47=52+28-47=80-47(80-9.8)5 分之 2-1.32=70.2X2/5-1.32=28.08-1.32=26.7687 分之 41(3.2-2.95)=84/710.25=84/74=8/72700506499900.-可修编-.=27007900=18900900=2133.02148.490.
4、852.5=33.0257.552.5=33.0223.02=101115.1=115.1=05.1=018.130.2990.231=18.11.71=18.11.7=19.8-18+29+-52+60= 19-3+-2+-1+0+1+2= -3-301+125+301+-75= 50-1+-1/2+3/4+-1/4= -1-7/2+5/6+-0.5+4/5+19/6= 1.25-26.54+-6.14+18.54+6.14= -81.125+-17/5+-1/8+-0.6= -30.45 2.51.125.-可修编-.0.81.2510.33.61.080.30.30.09100.07 0
5、.70.920.4 0.3680.20.260.0520.1440.560.020.10.0021.20.3 0.362.50.412.45120.224 0.883.25000.90.520.383.9913.9903.52012.58100810 = 0.810-1.8-7.2=10.43+3.57= 42.5412=1440.90.8=0.72.-可修编-.7.5x-3x =4.5xa+3a+7a= 11a1.05100=10510.5=20.963=0.320.56100= 563.78100=37840.8 =53.215100=321.50.810=84.08100=4081.10
6、.2 =0.220.60.8 =0.4830.9=2.72.50.4=10.165 0.81.782.2 = 3.981.20.5-0.4 = 0.20.70.01 =702.50.4 = 1123.9=8.11.2581.25 = 8.-可修编-.6.60.66 = 105.370+4.63 =4.633.92.03 5.937.22.8101.45= 73/5+(-2/3)=9/15+(-10/15)=-(10/15 -9/15)=-1/151/2+(-2/3)+4/5+(-1/2)+(-1/3)=1/2+(-1/2)+(-2/3)+(-1/3)+4/5=0+(-1)+4/5=-1/513
7、/17-3.5-6+2.5+6+4/17=(13/17+4/17+(-3.5)+2.5+-6+6=1+(-1)+0=0(-3.8)+2.7+(-0.43)+1.3+(-0.2)=(-3.8)+(-0.2)+2.7+1.3+(-0.43)=(-4)+4+(-0.43)=-0.435/6+(-3/4)=10/12+(-9/12)=10/12-9/12=1/12(-57/8)+2.125+(-3.37)+(-2.63)+25/4+(-0.25)=(-7.125)+2.125-6+6.25-0.25=(-5)+(-6)+6=-5.-可修编-.(-32)-(+5)=(-32)+(-5)=-377.3-(
8、-6.8)=7.3+(+6.8)=14.1(-1/50-(-2/3)-(+0.48)-(+4/9)=(-1/50)+(+2/3)+(-0.48)+(-4/9)=-1/50+2/3-0.48-4/9=-1/50-0.48+2/3-4/9=(-0.02-0.48)+(6/9-4/9)=-5/18(-2)-(-25)=(-2)+(+25)=231/2*(-1/4)=-(1/2*1/4)=-1/8(-1/2*-3/4=+1/2*3/4=3/8(-3)*5/6*(-3/5)*(-9/4)=-3*5/6*3*5*9/4=-27/8(-0.25)*0.5*(-100)*4=(-4*0.25)*0.5*(-1
9、00)=-1*(-50)=50(-5)*10/3+2*10/3+(-6)*10/3=(-5+2-6)*10/3=-9*(3+1/3)=-27-3=-30-13*2/3-0.34*2/7+1/3*(-13)-5/7*0.34=-13*2/3+1/3*(-13)+(-0.34*2/7-5/7*0.34).-可修编-.=-13*(2/3+1/3)+0.34*(-2/7-5/7)=-13-0.34=-13.34(-3)-7/4*0.75*7/33=-3*-4/7*3/4*7/3*1/3=3*4/7*3/4*7/3*1/3=1-3-【-5+1-0.2*3/5-2 】=-3-5+(1-3/25)-2=-3-5+22/25*(-1/2)=-3-(-5-11/25)=-3+5 又 11/25=2 又 11/25151/5-1/3=15-2/15=-15*15/2=-225/2-5/6-2/3*-3/2=-5/6*-3/2*-3/2=-5/6*3/2*3/2=-15/8.-可修编-
