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1、640+80=15X5=23X3=12X2X5=480+80=16X5=27X3=90+15=48+4=640+16=39+3=24X20=32X3=48+16=12X8=27X3=56+14=24+8=14X2=83-45=560+80=96+24=40+20=40X30=37+26=76-39=605+59=30X23=12X8=27+32=48+27=450020=73+15=120X600=200360=6800400=4X2500=6000-40=5X1280=310-70=400X14=470+180=1000-25=160X600=20X420=290X300=8100-300=
2、7600-200=7600-400=680+270=980-14=4200-30=6X1300=130OX50=200X48=930-660=530+280=9200+400=840+21=180X500=8000+500=1900+20=200X160=8700+300=300X330=1120X2=90+30=27030=270X30=84+21=76+9=66+7=100-54=123+15=360+4=55+5=32义6=7000+70=200+40=180+30=24040=35X2=140X7=13X6=280X3=3502=50X11=2506=7200+900=410-201=
3、125X8=48X20=6600+600=390+140=11X80=24X50=3600+400=530-70=420-90=9600+30=7X700=203+98=1800+300=240+570=4800+400=370+580=580-490=910-370=25X8=270-190=36X2=75+25=330+11=6X800=5400+9=420+60=3330=3007=9500=390+13=6300+700=5600+700=370+560=520+490=450-90=80+330=70X700=7000+70=4000+80=2400+200=76-39=605+59
4、=24+8=14X2=83-45=96+24=40+20=40X30=160X30=12X8=27+32=48+27=450020=120600=3023=123+15=280+270=200360=4250=310-70=40014=470+180=60600=20420=680+270=6X1300=1300X50=200X48=930-660=360-4=530+280=180X500=200X160=300X33=3X1400=60-12=140X300=5X400=370X200=65-13=15X10=84+21=100-54=12X11=220X40=1045=1202=90+3
5、0=270X30=55+5=32X6=35X2=140X7=13X6=2803=370+580=3502=7200+900=410-201=125X8=7240+80=480+80=400+50=320+40=210+30=60+20=200+50=360+40=30X3=80X9=60X5=90+30=720+80=300+60=15X5=23X3=12X2X5=480+80=16X5=27X3=90+15=48+4=64016=393=24X20=32X3=48+16=12X8=56-14=24-8=14X2=83-45=560+80=96-24=40-20=40X30=37+26=76-
6、39=605+59=30X23=12X8=27+32=48+27=4500X20=73+15=120X600=200X360=6800X400=280+270=4X2500=6000-40=5X1280=310-70=400X14=470+180=1000-25=160X600=20X420=290X300=8100-300=7600-200=7600-400=680+270=980+14=4200+30=760X20=7500+500=370X200=650+13=8600-4200=138-89=5400+54=200X34=550-450=18000+600=2700+30=45X14=
7、18万+24万=89+100=73X1=410=17+1000=90-0.9=41X100=8800+400=600+30=150+70=356-98=125X8=6126=1.5X100=840+40=8+100=3.6+10=5X17X2=154-73-27=1000X25=24X0+12=7.06X100=65.8+100=91.05+1000=300+15=0.05X1000=14X60=5400+600=345+298=31052=4X(25+50)=32.8+19=240+30=1000X0.8=3.06+0.2=8125=7-6.28=9923=50X4=10X0.5=65254
8、=0.08+100=1.82-0.63=4.5+1.5=1-0.63=231-99=3.7+2.5=1.3-0.7=2.4+0.6=7X99+7=24-19+24+19=7.5-2.8=14.5+9.5=400+25+8=416+8=1.25X3X8=0.9-0.26=821-202=12516=16.4-(3.5+6.4)=12.6+5.3+6.4=96+4+6=5.4-2.5-1.4=6.4+1.07-0.47=1.5-0.04=420+35=0.49+0.61=55X80=11.7+2.3=735-298=810+27=10-8.25=3200+400=360+120=1.29-0.18
9、=15X(100+3)=0.6+5.47=36+54=7000+200=398+294=250X40=125X800=97-59=64X4=998-299=240400=54-15=1407=299+455=1560=9100+700=900+50=17+49=25+68=542-298=152-46=620-290=100-79=860-370=0-38=670-540=894-399=68X101=19X40=47X4=95-64=40X19=95X2=590+30=1100-50=83-25=997+674=3200-200=4200-30=5500+500=44X6=65X50=65X
10、2=5X45=650+13=740+370=75义40=140+30=9600+3200=2义95=200-104=15+97=58+2=72+4=1000-37=6000+150=101+52=47-19=540X5=740义6=20000+500=28义300=25X12=43X50=530-250=600120=185-86=700-7=120+390=64+36-58=40X38X25=2X96X5=(18+25)X4=7X125+125=100X7+7=90-69+27=410-350-20=25X(100+2)=95X(100-1)=7X(40+7)=645-(500-1)=870
11、-130-150=53-38-14=19X6+11X6=827-59-241=678-372-28=17+15+18=5000+4000-300=310+260+420=28X3+16+4=(120-30X2)+4=(30X5+30)X5=42018+580+180=75+(18+14-27)=900-6-520+40=60-60+(4X3)=87+(20+30-47)=90+90+(48+8)=65+5+3X9=8.2+0.54+0.46=6400200=3.9+2.03=250-160=560+40=8X27X125=2.4-1.8=0.25+0.75=86.2+15.8=213+3=(2
12、5+24)X4=8-2.5=175-35=420-150=9+0.1=46+49+51=174-48-52=1.05-0.09=8X(125+50)=420+60=0.6+7.45=72X4+28X4=200+8=20-19.7=73X1=0.82+0.08=0.63X10=4+10=17+1000=0.56+0.4=1.25X100=5.6+99=100+25=1-0.93=52=4X(25+50)=90-0.9=5400+600=7.6+10=7.06X100=345+298=2.5X10=91.05+1000=300+15=0.05X1000=14X60=0.81-0.19=1-0.37
13、=0.5+0.4=0.9-0.3=0.35+0.43=2.8-1.2=9.7-7=7.8+2.2=5.8-5=6.7+3=4060=840+21=24X50=621-199=7.8+2.2=750-260=360+640=12-1.46-0.54=5.6+2.3+0.7=8800+800=110X600=25X6=30X270=84+7=535=640+40=960+60=42X50=0.6-0.47=0.8+4.7=0.75义100=5.6-100X10=4+10=0.08+1.22=45万+256万=7.4X1000=4X(25X7)=17+1000=720+60=1-0.93=7800=760-450=310+48=240+160=90X60=670-500=76万+19万=98-49=410-203=230万-70万=82万-54万=720+30=7X9+7X9=430+190=510+30=340+270=72+18=90+15=720+12=0578=38+90=130X50=380-56=580-410=196+68=18万+23万=1000-620=410-203=0-578=38+90=7X9-7X9=84
