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1、800X2=880 + 4=800-4 =390-3=1200-200 =330-3 =50+5 =11X7 =83-57 =65+15 =80-46 =29 + 68 =660+ 6=0+ 51 =68-49 =3X 800 =0+ 76 =80X7=420-7=0X85 =800-4 =3X220 =70-7 =330-3 =480 + 4=14X2 =3X23 =58+33 =5X900 =64 + 2 =420-20 =2X200 =58 + 26 =26+9=84 + 4 =34X2 =57-38 =0-91 =550 + 5 =1500-700 =930-3=800X8 =42X2

2、 =0+22 =420 + 2 =99+3 =93+3 =63 + 3=770-7=83-57 =160 + 4 =960+3=29+68 =800 + 700660+3=68-49 =690 + 3 =180-9=80X7 =58-0=1 /172X440 =48+2 =480+2 =60X5 =2X44 =840 + 4=440-4=32X3 =48 + 4 =540+9=90+9 =13X3 =600X7=120X3=480+2 =39+3 =560+8=990+3=3X200 =620+2 =3X 330 =690 + 3 =49+33 =700-7 =23X3=78-36 =11X4

3、=230X3 =310X3 =390-3 =230X3 =11X4=82-55 =310X3 =720-9 =4700-700 =600-3 =48 + 28 =640 + 8 =480 + 8 =660+2 =640+8=880 + 4= 7500-500 =0-91 =12X4 =3X 31 =0X57 =120X4=0X97 =360+9=44X2 =960+3=32X2 =2X440 =460+2 =70+500 =3X33 =280 + 4=9X400 =3/177X50 =800+8=880+8=9X500 =80+17=54+28 =42 X 3 = 1700-800 =90+3

4、 =180+3=300+5=930+3=800 + 4=6015 =900+3=450+9=360+6=37+56 =32X3 =70X7 =1200-700 =300-6=50X7 =0X37 =53-14 =17+27 =840 + 4=2X 14 =140-2 =660+ 6=7X800 =7X700 =840+2 =430X2 =540+9=31X3 =13X3 =34+56 =96+3 =2X330 =50 x 6=680 + 2 =620 + 2 =6X 800 =960 + 3 =1500-900=1800-800=63 + 3=26+57 =800-8 =33+57 =600X

5、3 =37+8=480 + 8 =630-3 =62-33 = 500 + 500 =33X2 =800-2 =700-8 =0-47 =24X2=21X40=560-7=30X70=12X10=440 + 4=10X74=31X2=93+3 =50 x 10=14X20=24X2 =70X 11 =6X90=0+54 =30X40=20X33=23X3 =24X20=90X20=12X30=12X20=20X13=7X80 =30X21 =31X20=48 x 10=20X70=22X3=40X40=28X 1 =60X90=40 x 10=20 x 13=39X10=23X30=1X36=

6、21X2=60X50=10X 19=44X20=70X80=11X50=12X4=10X68=30X30=22X30=40X50=28 x 10=22X4=30X21 =20X50 =30X80=7X 11 =10X36=33X10=50X70=30X33=50X90=12X40=13X30=84X 1 =220X3=23X30=900X6 =22X40 =4X90=34X20=90X40=60X60=33X30=200X3=60X40=31 X20=41X20=90X30=700X6 =21X30=21X40=84 x 10=10X46=30X20=9X800 =3X700 =40X90=7

7、0X30=33X30=2X31 =2X42 =20X41 =33X20=86-47 =6X600 =40X70=5X90 =24X20=48+19=22X30 =50X30=70X6=6X500 =0X45 =4X900 =8X70=50X70=2X310 =42X20=800X7=20+35 =400 + 30060+6 =45+35 =5X900 =10X89=32X20 =10X33=69 x 10=70X60 =22X0=9 / 1780X70=200X4=0-20 =6x 60 = 22X40=44+20 =40X40 =43X20 =46+37 =420+6=300-6=40 X

8、11 = 360+9= 10X34 =40X90 = 90X60=490-7=20X34 =300X3=80X4 =12X20 =30X 80=41 X20=97 x 10=700-7 =33X 30 =0 + 59 =11 x 80=200-4 =31 X20 =600 + 90 =4700-700 =44-37 =40 X 12 =84-47 =630-7 =71-23 =0 + 43 =31 X30=21 X30=65X0 =330-3=250+5=680-80 =21 X40 =80X40 =10X37 =20X50 =2000 + 300 =880+2 =70X20 =400-4=O

9、x 66 =50X30=640+8=880 + 4=400+300 =34+39 =360+6=99 X 10 =43X2 =0X20 =75+18 =23+48 =90X30 =30 x 12 =46+24 =0+73 =42X20 =100+5=10X50 =350+5=52-29 =240X2 =52+39 =400+8=480+8=33X30 =50X5 =800X3=60X50=410X2 =41X20=310X3 =20X23=440 + 4 =30X32 =0X35=10X35=29+61 =40X70 =30X30=50X90=80X30=20 x 14=90X50=420 +

10、 6 =300 + 6 =240 + 4 =69 X 10 =22X40 =33X20 =900 + 9 =810 + 9 =630 + 9 =30X23 =330X3 =0X30= 750-50 =480 + 8 = 5000 + 2000=77-48 =300 + 5 =300 + 700 =420 + 2 =820 + 2 =70X 11 = 4500-500 =20X40 =400 + 4 =11X40=700X5=400 + 600 =34 + 29 =800 + 8 =21 X30 =720 + 8 =33X30 =32X20 =87 x 10=500 + 40 =22X40 =4

11、40 + 4 =33X20 =320 + 4 =900 + 3 =77-29 =0 + 93 =640 + 2 =30X50 =75+18 =600 + 700 =900X5=67-49 =200 + 4=8000-1000 =20X24 =57+29 =540+6=10X73 =10X58 =0+49 =34X20 =80X90 =30X70=120X4=640+8=720+9=10X34 =65 X 10 =660+3=41X20 = 7000-3000 =30X30=10X47=30X23=660+6= 5900-5000 =11X40 =70X40 =10X36=6000 + 2000

12、 =80X80=29+14 =80X50 =200X4=36+56 =88 x 10=600+6=22X30 =11 / 1740X70 =0+93 =660 + 3 =43+38 =90X50 =84-65 =43-16 =10X80 =57+29 =500+40 =88 X 10 =700X5=80X90 =40X70 =21X30=660+ 6=65 X 10 =540+ 6=22X40 =80 X 80 =10X47 =30X70 =600-6=10X36=660+3=43+38 =720-8=36+56 =23X30 =10X73 =90X50 =800-8=6000 + 2000

13、=120X4=640+2 =26+9=57-38 = 1500-700 =42X2 =99+3 =770-7=960 + 3 =180-9 =65+15 =660 + 6 =800X2 =50 + 5=3X 800 =420-7 =3X220 =480 + 4 =58+33 =420-20 =93 + 3=880 + 4 =1200-200=11X7=80-46 =0 + 51 =0 + 76 =13/17OX 85 =70-7 =14X2 =5X900 =2X200 =84 + 4 =0-91 =930-3=390+3=0+22 =83-57 =29+68 =68-49 =80X7 =800

14、-4=330-3=3X23 =64 + 2 =58+26 =34X2 =600X7 =120X3 =480 + 2 =39 + 3=560 + 8 =990 + 3 =3X200 =620 + 2 =660 + 2 =640 + 8 =880 + 4 =7500-500=0-91 =12X4=3X 31 =0X57 =120X4 =0X97=360 + 9 =44X2 =550+5=800X8=420+2 =63+3 =160 + 4=800+700 =690+3=58-0 =2X440 =48+2 =480+2 =60 X 5 =2X44 =840 + 4=440 + 4=32X3 =48

15、+ 4 =540+ 9=90+9 =13X3 =960+3=82-55 =800 + 4 =32X2 =310X3=60-15 =2X440 =720+9=900 + 3 =460+2 =4700-700 =450 + 9 =70+500 =600+3=360 + 6 =3X33 =48+28 =37+56 =280 + 4=640+8=32X3=9X400 =480+8=70X7=3X330 =7X50 =1200-700=690+3=800+8=300 + 6 =49+33 =880+8=50X7=700+7=9X500 =0X37 =23X3 =80+17 =53-14 =78-36 =

16、54+28 =17 + 27 =11X4 =42X3 =840 + 4 =230X3=1700-800 =2X 14 =310X3=90+3 =140 + 2 =390+3=180+3=660 + 6 =230X3=300+5=7X800 =11X4 =930+3=7X700 =840+2 =37+8 =23X30=430X2 =480-8=60X50=540+ 9=630-3=70X80=31X3 =62-33 =10X68=13X3 =500+500 =40X50=34+56 =33X2 =30X21 =96+3 =800-2 =7X 11 =2X330 =700-8=50X70=50X

17、6 =0+47 =24X2=680+2 =560-7=30X70=620+2 =440 + 4=10X74=6X 800 =93+3 =50X10=960+3=24X2 =70X11 =1500-900 =0+ 54 =30X40=1800-800 =23X3 =24X20=63 + 3 =12X30 =12X20=26+57 =7X80 =30X21 =800-8=48 x 10=20X70=33+57 =40X40=28X 1 =600X3=40 x 10=20X13=17 / 1721X2=44X20=12X4=22X30=22X4=30X80= 33 x 10= 50X90= 12X4

18、0=220X3 =22X40 =90X40 =200X3 =41X20=21X30= 10X46=3X700 = 33X30= 20X41 =6x 600 =24X20=50X30=0X45=50X70=800X7=60+ 6=10X89=69X10=13X30=23X30=4X 90=60X60=60X40=90X30=21X40=30X20=40X90=2X31 =33X20=40X70=1X36 =10X 19=11X50=30X30=28 x 10= 20X50 = 10X36= 30X33=21 X40=12X 10=31X2 =14X20=6X90 =20X33=90X20=20

19、x 13= 31X20= 22X3 =60X90=39 x 10=23/1748+19 = 70X6 =4X900 =2X310 =20+35 = 45+35 =32X20 = 70X60 =84X 1 =900X6=34X20=33X30= 31X20=700X6= 84 x 10=9X800 = 70X30=2X42 =86-47 = 5X90 =360 + 9 = 10X34 =40X90=90X60=490 + 7 =20X34 =300X3 =80X4=65X0=330 + 3 =250 + 5 = 680-80 =21 X40 =80X40 =10X37=20X50= 2000 +

20、 300=880 + 2 =70X20 =400 + 4 =22X30 =6X500 =8X70 =42X20=400+300 =5X900 =10X33=22X0 =80X70=200X4=0+20 =6X60 =22X40=44+20 =40X40 =43X20 =46+37 =420+6=300+6=40X 11 =OX 66 =44-37 =52-29=50 x 30=40 X 12 =240X2 =640+8=84-47 =52+39=880 + 4=630-7=400-8=400+300 =71-23 =480+8=34+39 =0+ 43 =33X30=360+ 6=31X30=

21、50X5=99 X 10=21X30=800X3=12X20=43X2 =60X50=30 x 80=0X20 =410X2 =41X20=75+18=41X20=97 x 10=23+48 =310X3=700-7=90X30=20X23=33 x 30=30 x 12 =440+4=0+ 59 =46+24 =30X32=11X80=0+ 73 =0X35=200-4=42X20 =10X35=31X20 =100-5=29+61 =600+90 =10X50 =40X70=4700-700 =350+5=30X30=50X90=300+5=80X90 =80X30=300+700 =30X70=20 x 14=420+2 =120X4 =90X50=820+2 =

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