人教版二年级下册数学口算综合练习题打印版

1、42+80=15+ 5 =7 + 7 =24+4 =500-60=9X3 =96-42=7+63=89-8=42-15=58-36=9X4 =64-18=18+ 9 =5X7 =36+ 6 =34+9=180-60=72+9 =6 + 4 =27-14+ 7=72-40=36+6=18+ 2 =58+32=47+8=81 + 9 =63+ 7 =80-28=14+85=42+13=9X6 =300X 6 =61+27=24-3 =9X9 =7+3X 4 =170+20=24+8=46+10=90-26=5X9 =27-3=65+40=8X6+7=7X8=42+13=81 + 9 =522+23

2、=73+16=42-6=55-20=6X4+2=60+300=7+44=9+46=120X4=44-9=42-7 =9-3 =80X 5 =72+16=64-8=9 + 9 =40X 5 =43+32=21-3 =58+32=15 5+5=35-8=4X8 =80-28=600-50=56+ 7 =54+9 =33+60=56 x 2 =8X3=49+7 =54+ 6 =200-36=7+56=42+7 =40+ 8 =15+5X 3 =56+ 7 =35+7 =61-13=380+50=12+6 =19+41=15+ 5 =789+0=4X2 =7X8 =9X3 =300+ 5 =21-7=

3、73-4=42-15=15 4+8=7X3 =72+8 =18+ 9 =680X 0 =8 + 8 =64-8=180-60=40 25=32+4 =24X0 =72-40=6X6+6=80-9=510+200=47+8=436-24=42+7 =7+1X8 =14+85=111X9 =35-6=130+80=61+27=120X3=28+ 7 =46-8=10+ 5 =33+60=21-3 =8X5-7=83-29=54+ 6 =83-20=9X3-8=5X6 =40+ 8 =43-30=30+6 =43-17=61-13=9+1 =36+4 =21+27=32-8 =24-4 =28+6=

4、19+41=30-6 =7+63=7X5 =130+80=36-4 =9X4 =36+4=46-8=64-8 =36+6 =30-5 =8X5-7=5-1 =9X7 =63-9 =9X3-8=15-3 =56+8 =5+58=30-6 =16-8 =28+6=64-8 =36-4 =42-6 =7X5 =6X3 =180+200=400+50=36+4=9X9 =93-80=38+26=30-5 =72-8 =7X8 =27-3=63-9 =78+15=24-4 =42+13=64-8 =83-20=7+63=42-6=38+16=43-30=9X4 =7+44=45-5 =9-1 =36-6

5、 =42-7 =7-1 =7-7 =9X7 =64-8=25+23=96-42=56-8 =21-3 =12+35=58-36=28+6=4X8 =27+71=5X7 =7X5 =54+9 =46+33=72-9 =36+4=49+7 =40+8 =36-6 =30-5 =42-7 =21+15=81 + 9 =63-9 =35-7 =36+22=42+13=64-8 =19+41=59+18=24-3 =38+16=7X8 =72+24=24+8=45-5 =73-4=93-8=27-3=7-1 =72-8 =49+7 =42+13=25+23=64-8=6X9 =42-6=12+35=24

6、X0 =56-30=7+44=27+71=510+200=35-5 =42-7 =46+33=7+1X8 =27+25=64-8=40-8 =130+80=24-4 =21-3 =21+15=46-8=7+63=4X8 =36+22=8X5-7=9X4 =54-9 =59+18=9X3-8=36+6 =49+7 =72+24=30-6 =9X7 =42-7 =41-29=36-4 =56+8 =35-7 =44-96X4+2=8+2X 20=80-28=6X9 =120X4=22+40=33+60=56-30=80X 5 =7X8-7=54+6 =35+ 5 =40X 5 =56+ 8 =40

7、+8 =27+25=15X 5+5=380-190=61-13=27+ 9=600-50=72+16=15+5 =53+8=56 X 2 =43+32=9X3 =4X9 =200-36=35-8=42-15=8 + 2 =15+5X3=56+ 7 =18+9 =32+8 =380+50=8X2 =180-60=8+1 =789+0=7+56=72-40=9X9 =300+ 5 =56+ 7 =47+8=84+7=15X 4+8=12+6 =14+85=80-44=680X 0 =4X2 =61+27=1800-900=40X 25=21-7=170+20=420+80=6X6+6=7X3 =5

8、X9 =500-60=436-24=8 + 8 =7X7 =89-8=111X9 =32+4 =73+16=64-8=120X3=80-9=60+300=34+9=360+80=42-7 =10+5 =27-14+7=300X 7 =35-6=83-29=5+58=85+247=28+ 7 =5X6 =64+ 8 =310X 3 =21-3 =43-17=6X3 =200X 5 =6 + 4 =21+27=9X9 =320X 2 =18+ 2 =32+8 =72+8 =660+ 6 =63+ 7 =30+6 =78+15=700X 2 =9X6 =36+4 =83-20=80X 3 =9X9

9、=64+8 =43-30=630+ 9 =46+10=5+1 =9+1 =350+ 7 =65+40=15-3 =7 + 7 =700X 2 =81 + 9 =16+8 =96-42=18X 4 =55-20=42+6 =58-36=320X 3 =9+46=400+50=5X7 =60 15=9-3+15=38+26=72+9 =72+6 + 2 =18+ 9 =93-8=36+ 6 =400X 3 =58+32=49+7 =81 + 9 =42+13=84+7=49-7 =40-8 =24-3 =80-44=42-7 =21+15=24+8=420+80=35-7 =36+22=27-3=

10、500-60=19+41=59+18=42+13=89-8=7X8 =72+24=42-6=64-8=73-4=41-29=7+44=34+9=72-8 =44-942-7 =27-14-7=64-8=72+16=64-8=5+58=24X0 =43+32=21-3=64-8 =510+200=35-8=4X8 =6X3 =7+1X8 =56-7 =54-9 =9X9 =130+80=8X2 =49+7 =72-8 =46-8=7+56=42-7 =78+15=8X5-7=56-7 =35-7 =83-20=9X3-8=12-6 =19+41=43-30=30-6 =4X2 =130+80=9

11、-1 =36-4 =21-7=46-8=7-7 =24-4 =7X3 =8X5-7=96-42=7+63=8-8 =9X3-8=58-36=9X4 =32-4 =30-6 =5X7 =36-6 =80-9=36-4 =72-9 =9X7 =42-7 =180+200=36-6 =56-8 =35-6=93-80=81 + 9 =28+6=28-7 =7X8 =42+13=7X5 =21-3 =73-4=24-3 =36+4=36-4=72-8 =24+8=30-5 =18-2 =64-8=27-3=63-9 =63-7 =24X0 =42+13=64-8 =9X6 =27-9 =42-6=38

12、+16=9X9 =53+8=7+44=45-5 =46+10=4X9 =42-7 =7-1 =65+40=8-2 =64-8=25+23=81 + 9 =32-8 =21-3 =12+35=55-20=8-1 =4X8 =27+71=9+46=9X9 =54-9 =46+33=9-3 =9-9 =93-8=8X2 =180-60=58+32=49+7 =7+56=72-40=80-28=6X9 =56-7 =47+8=33+60=56-30=12-6 =14+85=54-6 =35-5 =4X2 =61+27=40+8 =27+25=21-7=170+20=61-13=24-4 =7X3 =5

13、X9 =15-5 =7+63=8-8 =7X7 =9X3 =9X4 =32-4 =73+16=42-15=36+6 =80-9=60+300=18-9 =9X7 =42-7 =10-5 =180-60=56+8 =35-6=83-29=72-40=28+6=28-7 =5X6 =47+8=7X5 =21-3 =43-17=14+85=36+4=36-4 =21+27=61+27=30-5 =18-2 =32-8 =170+20=63-9 =63-7 =30-6 =5X9 =64-8 =9X6 =36-4 =7X7 =38+16=9X9 =64-8 =73+16=45-5 =46+10=5-1

14、=60+300=7-1 =65+40=15-3 =10-5 =25+23=81 + 9=16-8 =83-29=12+35=55-20=42-6 =5X6 =27+71=9+46=400+50=43-17=46+33=9-3 =38+26=21+27=40+8 =9-9 =93-8=32-8 =21+15=58+32=49+7 =30-6 =36+22=80-28=6X9 =36-4 =59+18=33+60=56-30=64-8 =72+24=54-6 =35-5 =5-1 =41-29=40-8 =27+25=15-3 =44-9=61-13=24-4 =16-8 =72+16=15-5

15、=7+63=42-6 =43+32=9X3 =9X4 =400+50=35-8=42-15=36-6 =38+26=56-7 =18+9=9X7 =56+ 8 =35-6=10+5 =16+4X8 =28+6=28+ 7 =83-29=8 + 4+48=7X5 =21-3 =5X6 =25 5+36=36+4=36+4 =43-17=6X8-42=30+ 5 =18+ 2 =21+27=2X8+4=63+ 9 =63+ 7 =32+8 =8X9+9=64+ 8 =9X6 =30+6 =36+ 6-3 =38+16=4X2 =36+4 =9+9X6=45+ 5 =9X9 =64+8 =42+7X

16、6 =7+1 =46+10=5+1 =96-80+7=25+23=65+40=15-3 =64-40-8=12+35=81 + 9 =16+8 =40-4+20=27+71=55-20=42+6 =7X5-8=46+33=9+46=400+50=14+ 7+25=40+ 8 =9-3 =38+26=15+ 5+8=21+15=9+9 =93-8=8X9-8=36+22=58+32=49+7 =1 X 2+20=59+18=80-28=6X9 =54+ 6+33=72+24=33+60=56-30=510+200=41-29=54+ 6 =35+5 =15-45+9 =44-9=40 5=27+

17、25=11-40+8 =72+16=61-13=27+9 =7+1X8 =43+32=15+ 5 =53+8=130+80=35-8=9X3 =4X9 =46-8=56+ 7 =42-15=8 + 2 =8X5-7=8X2 =18+ 9 =32+8 =9X3-8=7+56=180-60=8+1 =30+ 6 =56+ 7 =72-40=9X9 =36+4 =12+6 =47+8=84+7=4X5+44=4X2 =14+85=80-44=48+ 8+7=21-7=61+27=27-14+ 7=1800+200=7X3 =170+20=4X3+2=93-80=8 + 8 =5X9 =6+3X7=6

18、X5+37=32+4 =7X7 =8+4X3=10-8+1 =80-9=73+16=6X5+37=7X8 =42+7 =60+300=12+4+18=73-4=3X8+4=7X5 =21-3 =5X6 =7X6+10=36+4=36+4 =43-17=72+8 =30+ 5 =18+2 =21+27=8 + 2 =63+ 9 =63+7 =32+8 =32+8 =64+ 8 =9X6 =30+ 6 =4900-1800=38+16=4X2 =36+4 =20+80=45+ 5 =9X9 =64+ 8 =430+1000=7+1 =46+10=5+1 =500-60=25+23=65+40=15

19、+ 3 =89-8=12+35=81 + 9 =16+ 8 =64-8=27+71=55-20=42+6 =34+9=46+33=9+46=400+50=27-14+7=40+ 8 =9-3 =38+26=5+58=21+15=9 + 9 =93-8=64+ 8 =36+22=58+32=49+ 7 =6X3 =59+18=80-28=6X9 =9X9 =72+24=33+60=56-30=72+8 =41-29=54+6 =35+ 5 =78+15=44-9=40+8 =27+25=83-20=72+16=61-13=27+ 9 =43-30=43+32=15+5 =53+8=9+1 =35

20、-8=9X3 =4X9 =280+450=56+ 7 =42-15=8 + 2 =7 + 7 =8X2 =18+9 =32+8 =3600+5800=7+56=180-60=8+1 =8X9+21=56+ 7 =72-40=9X9 =730-190=12+6 =47+8=84+7=3700-370=4X2 =14+85=80-44=85+55=21-7=61+27=18-900=24+4 =7X3 =170+20=27+23=7+63=8 + 8 =5X9 =64+28=9X4 =32+4 =7X7 =23+49=36+ 6 =80-9=73+16=24+57=9X7 =42-7 =60+30

21、0=34+58=56+ 8 =35-6=10+5 =26+8=28+6=28+ 7 =83-29=37+5=77+5=29+35=72-28=13+60=58+8=25+37=34-28=36-17=26+57=54+7=50-32=4+40=4+18=34+9=92-47=17+48=68+13=24+16=41-72=60+3=32+18=58+34=82-16=76-6=65+56=42+9=85-57=87-19=28+16=29+27=21-15=60+3=6+16=19+35=53-35=70+9=54+18=68+12=44-44=56-28=46+7=27+28=32-23=4

22、9+3=46+37=53+27=40-28=32-26=24+8=70-3=43-26=62-29=36+48=81-18=37-21=42-27=25+37=71-26=46-17=95-57=86+7=72-25=65-47=67-7=52+18=40-19=74-47=8+20=26+8=72-7=81-13=2+30=5+39=77-22=65-32=94-4=72+9=91-65=72-67=6+50=15+38=49-40=65-19=70+8=25+16=45-30=77-19=48-19=53+39=62-7=55-28=37-7=58+27=81-3=41-27=2+50=4

23、6+27=74-21=92-68=26+58=25+37=90-9=62-57=65+19=66+17=77-39=60-22=52-28=69+21=30-12=70-21=35+26=28+54=50-36=88-9=8+70=39+28=64-38=44-19=23+719=19+62=28-19=66-38=32+87=58+32=35-19=71-28=32-26=43+28=62-59=5+40=85-58=18+23=50-42=70+1=24+28=43+8=54-37=54-4=78-19=36+15=71-33=30-18=26+28=52+29=6-2 =10-5 =20

24、-4 =55+17=6-2 =26+7=4X9-6=74-15=12-2 =18-3 =21-3 =54-48=2X7 =18+6=3X6 =88-28=15-5 =30-5 =9-3 =81-34=30-5 =20+4=90-45=35+36=24-6 =5+67=24-4 =44-15=16-4 =4X9 =15-5 =3X6 =20-4 =18+23=27-9 =18-3 =15-3 =43+8=9X9 =18+6=10-5 =36+15=72-9 =15-3 =5-1 =29+35=3X4-2=6-3 =18-6 =25+37=36-4 =25-5 =30-6=54+7=5-5 =20

25、-5 =4X5 =34+9=56+41=5-5 =6X3 =24+16=56-7 =30-6 =16-4 =58+34=16-2 =9-3 =25-5 =42+9=42-6 =4X3 =36-6 =45+5=18-2 =16-4 =5+1 =1 + 1=5X1 =12-4 =12-2 =5X5 =45-39=8-2 =42-6 =72-8 =3X6-3=24-4 =24-3 =9-9 =24-6 =4X4 =2X6 =24-8 =56-7 =20-4 =6X6 =27-14-7=36-6 =24-6 =25-5 =6-1 =24-3 =2X5 =12-4 =15-3 =4X5 =6X9 =3X

26、8 =3X6-2=27-3 =2X9 =15-5 =4 + 2=8 + 4=9X4 =33-9=6X2 =56-8 =8-2 =18+3 =6-2 =36-9 =10-5 =8+72=10-5 =3X6-6=9-3 =3X6 =70 - 52=45-5 =5X6 =42-5=49-7 =6-6 =49+7 =20-5 =10-2 =12-6 =18+6=50-27=54-6 =1X4 =18-6 =72-9 =7X9 =7X3 =1X8 =81 + 9 =63-7 =9X9 =24-8 =9-1 =32-8 =16-4 =36-6 =18+9 =40+8X 5 =7X7 =48-6 =1X1

27、=2-1 =28-7 =4X6-8=42-6 =5X3 =40+8 =54-6 =24-8 =2X6 =6X6 =7-7 =36-4 =64-8 =63+9X45-1 =63-7 =3X3 =7X4 =1X6 =19-2X4 =5X4 =9-1 =56-8 =2X5 =3X2 =7X8 =21-7 =54-6 =16-8 =24-6 =28-7 =2X8 =23+17=7X5 =7X3 =20-4 =16-2-4 =24-3 =35-7 =4X7 =42-6 =81 + 9 =2X3-6=49+7 =1X9 =3X6 =42-7 =10-2 =54+9 =25+41=45-9 =30-6 =6

28、X3 =56+7X630-6 =3X7 =3X1 =14+2 =49+7 =3X8+40=9 X 6 =35-7 =9X2 =45-9 =6X4 =63+24=56-7 =9X4 =4X4 =9X2 =64-8 =5X6 =6X5 =36+6 =24-6 =6X2 =27-9X7 =9X5 =63-7 =32-8 =8X1 =35-7 =8x5 -81X5 =54-6 =27-3 =4X3 =48-8 =7-1 =4 + 4=16-8 =2X7 =8X8 =56+8X972-8 =4X8 =63-7 =36-9 =2X7 =2X6+4=8X9 =42-7 =9-9 =7X6 =8X5 =12-

29、3 =27-9 =12-2 =40+8 =5X9 =5X7 =4X9 =9X3 =20-4 =18+9=12-4 =54-9X3 =5X7 =8X3 =5X8 =6X9 =9X8 =81-9-3 =6-3 =30-6 =18-3 =8-1 =2X2 =21-7 =27-9 =1X6X8=30-6 =3X8 =27-3 =9-9 =14+2 =8-2 =3X4 =16-2 =7X8 =4X8 =27+9X971-68=35-5 =30-5 =5-1 =6-1 =5X 6+41 =18-3 =4X3 =15-3 =80-46=5X2 =15-3 =9X3 =10-5 =48+6 =18-2 =45

30、+45=42-6 =42+36=8X6 =5X9 =7X2 =8-1-4=4 + 2=66+26=18-2 =25-5 =6X2 =5 X 5+52=65+26=63-9 =6-2 =72-8 =5X6 =28-4 =42-6 =9X8 =36-9 =5X5 =64+8X852+35=6X4 =81 + 9=9X2 =8 + 4=54+6 + 3 =3X6 =8 + 4=14+2=8-8 =25+41=49+7 =6X2 =4X8 =27-14-7=45-6=6-2 =75-64=4X3 =10-2 =49+7 =2X1 =90-65=3X6 =10-2 =8-8 =4X5 =9-3 =54+

31、6X 4 =32-4 =41+25=8X6 =27-9 =85-62=4X7 =4+1=20-4 =20-5 =35-7 =9X9+12=3X6=6X5 =4X9 =72-9 =30-6 =40+5 + 2=36+24=4X5 =15-5 =16-8 =12-2 =36-4 =49+7 =50+40=78-19=45-5 =9X4 =21-3 =3X8 =39+45=9-3 =5X8 =12-4+9=30-6 =9X7 =28-7 =1 + 1=42-7 =42-6X6 =5X4 =5X5 =10-5 =24-4 =24-8 =72-8 =4X2 =18+9=6X7 =81 + 9=18+2

32、+ 3：9X9 =35-5 =8X2 =9X5 =72-9 =4X9+6=18+9=14+2 =4X6 =9X1 =30X4 =7X8-7=15+ 5 =8+1X8=581+12=56+ 8 =21-3 =3X6 =400X 5 =380-190=8X4 =28+ 7 =45-3 =400X 6 =24+4 =24+ 8 =51+31=50-23=8X7 =3X9 =13X3 =35X 0 =16+ 2 =20+ 5 =60+4 =40X 6 =4X8+52=4X1 =120-50=300X 6 =24+ 6 =12-3 =300-64=7+3X4 =3X7 =4X9 =64X10=90-26

33、=8 + 8 =81 + 9 =6+6 X 7 =8X6 +7=32+4 =5X7-20=400X 5 =522+23=3X5 =25+41=50-31=6X4+2=6-3 =27-14+ 7=425X 0 =120X4=3X9 =6+6 =528-0=80X 5 =63+ 9 =63+24=450+80=40X 5 =4X9 =42-7 =57+140=15X 5+5=25+ 5X8 =5X2 =800X 2 =600-50=6X5 =56+ 7 =3000-400=56 X 2 =30+ 5 =3X7 =420+ 7 =200-36=6X6 =12+2 =6X80+20=15+5X 3 =

34、40+ 5 =4X9+40=420-330=380+50=8X7 =75+21=5X28=789+0=16+ 8 =69-57=60X5 =300+ 5 =36+42=49+37=17X3 =15X 4 +8=21-3 =81-25=212+88=680X0=4X2 =40+ 8 =630+ 9 =40X 25=48+ 6X4 =25X 3 =350+ 7 =6X6+6=35+ 5 =268+125=700X 2 =436-24=21 + 7 =280+40=18X4 =111X9 =3X8 =66-22=320X 3 =120X3=8 + 2 =46 20=60X15=360+80=4X1

35、=85-42=72+6 + 2 =300X7=18+ 3 =90-31=400X 3 =85+247=8X9 =60X 9 =8+2X20=310X3=28+4 =55+41=22+40=200X5=320X 2 = 660+ 6 = 700X 2 = 80X 3 = 70+550= 800X 6 = 500X 4 = 540+ 9 = 14X 5 = 350-80= 570+50= 23X 3 = 180+ 3 = 200X 8 = 530-70= 850X 2 = 263-80= 850+ 2 = 98+26X0 = 102X 2 = 700X 3 = 310X 3 = 300+ 5 =

36、5X7-20= 25+41= 27-14+ 7= 6 + 6 = 63+24= 42+7 = 5X2 = 56+ 7 = 3X7 = 12+2 = 4X9+40= 75+21= 69-57=49+37= 81-25=40+ 8 = 25X 3 = 268+125= 280+40= 66-22=46 20= 85-42= 90-31=60X 9 = 55+41=30X 4 = 581+12= 400X 5 = 45+ 3 = 51+31= 13X 3 = 60+4 = 120-50= 300-64=64 10= 6+6X7= 400X5= 50-31= 425X0= 528-0= 450+80=

37、 80X 5 = 6000+4000= 5000-500= 8600-600= 1300-500= 600X4= 59+42= 87-38=43X7 =245X 9 =309X 5 = 490X 5 = 70+550=800X 6 = 500X 4 = 540+ 9 = 14X5 = 350-80= 570+50=23X3 = 180+ 3 = 200X 8 = 530-70= 850X 2 = 263-80= 850+ 2 =98+26 X 0 = 102X 2 = 700X 3 = 310X 3 = 300+ 5 =80X5 = 6000+4000= 5000-500= 8600-600=

38、 1300-500= 600X 4 = 59+42= 87-38=43X7 = 245X 9 =309X 5 = 490X 5 = 75+21=69-57= 49+37= 81-25= 40+ 8 = 25X 3 = 268+125= 280+40= 66-22=46 X 20= 85-42= 90-31=60X 9 = 55+41= 30X 4 = 581+12= 400X 5 = 45+ 3 = 51+31= 13X 3 = 60+4 = 120-50= 300-64= 64 X 10= 6+6X7 = 400X 5 = 50-31= 425X 0 = 528-0= 450+80= 57+

39、140= 800X 2 = 3000-400= 420+ 7 = 6X80+20= 420-330=5X28=60X5 = 17X3 = 212+88= 630-9 = 350-7 = 700X2 = 18X4 = 320X3 = 60X15= 72-6-2 = 400X3 = 8+2X20= 22+40= 7X8-7= 56-8 = 380-190= 400X 6 = 50-23= 35X0 = 40X 6 = 300X6 = 7+3X4 = 90-26= 8X6 +7= 522+23= 6X4-2= 120X4 = 80X5 = 40X5 =15X 5+5= 600-50= 56X2 =

40、200-36= 15+5X 3 = 380+50= 789+0=300-5 = 15X4 +8= 680X0 = 40X25= 6X6+6= 436-24= 111X9 = 120X3 = 360+80=300X7 = 85+247=310X3 = 630-9 = 350-7 =700X2 = 18X4 =320X3 = 60X15= 72-6-2 =400X3 = 8+2X20= 22+40=7X8-7= 56-8 = 380-190= 400X 6 = 50-23=35X0 = 40X 6 = 300X6 =7+3X4 = 90-26= 8X6 +7= 522+23= 6X4-2=120X

41、4 =80X5 = 40X5 = 15X 5+5= 600-50= 56X2 = 200-36= 15+5X 3 = 380+50= 789+0= 300- 5 = 15X4+8= 680X0= 40X25= 6X6+6= 436-24= 111X9 = 120X3 = 360+80= 300X7= 85+247= 310X3 = 200X5= 320X2 = 660+ 6 = 700X2 = 80X3 = 630-9 = 350-7 = 700X2 = 18X4 = 320X3= 60X15= 72+6 + 2 = 400X3= 8+2X20= 22+40=7X8-7= 56-8 = 380

42、-190= 400X 6 = 50-23= 35X0 = 40X 6 = 300X6 = 7+3X4 = 90-26= 8X6 +7= 522+23= 6X4-2= 120X4 = 80X5 = 40X5 =15X 5 +5= 600-50= 56X2 = 200-36=15+5X 3 = 380+50= 789+0= 300-5 =15X4+8= 680X0 = 40X25= 6 x 6+6= 436-24= 111X9 = 120X3 = 360+80= 300X7 = 85+247= 310X3 = 75+21=69-57= 49+37= 81-25= 40+ 8 = 25X 3 = 2

43、68+125= 280+40= 66-22= 46 X 20= 85-42= 90-31= 60X 9 = 15+5X 3 = 380+50= 789+0= 300+ 5 = 15X 4+8= 680X 0 = 40X 25= 6X6+6= 436-24=111X9 = 120X3= 360+80= 300X 7 = 85+247= 310X 3 = 630+ 9 = 350+ 7 = 700X 2 = 18X 4 = 320X 3 = 60 15= 72+6 + 2 = 400X 3 = 8+2X 20=22+40= 7X8-7= 56+ 8 = 380-190= 400X 6 = 50-2

44、3= 35X 0 = 40X 6 = 300X 6 = 7+3X 4 = 90-26= 8X6+7= 522+23= 55+41= 30X 4 = 581+12= 400X 5 = 45+ 3 = 51+31= 13X 3 = 60+4 = 120-50= 300-64=64 X 10= 6+6X7 = 400X 5 = 50-31= 425X0= 528-0= 450+80= 57+140= 800X2= 3000-400= 420+ 7 = 6X80+20= 420-330=5X28=60X5 =17X3 = 212+88= 23+19= 64-45=96-3 = 58+36=40-11=

45、110-60= 560-5000=77+7 =60-6=44+49=99+9 = 8800-80= 960-6000= 800-60=64+26=77+7 =93-31=44+49= 15+67=63-52=19+61=80-55=50-39=82-62=30+6 =23+36= 6000+900=20+67=36-18=30+6 =80+8 =78+19=84+4 = 21X3 = 82-26= 64+26= 19+66= 80-22= 7X10= 85+28= 76-17= 22+29= 42+2 = 40-11= 90-43= 31X2 = 93-31= 110-60= 63-25= 3

46、1-15= 34+19= 18+71= 50+ 5 = 310-1000= 1600-700= 5400-400= 78-69= 18+71= 2000+60= 58+36=9300-300= 80-22= 44+29= 76-17= 34+19= 82-62= 7X10= 93-31=23+19=46+33=80-55=18+71=1100-100=40+ 8 =50-39=2000+60=23+19=21+15=82-62=58+36=82-26=36+22=30+6 =9300-300=150-90=59+18=23+36=80-22=50-39=72+24=6000+900=44+29

47、=18+71=41-29=20+67=76-17=800+600=44-9=36-18=34+19=9300-300=72+16=30+6 =82-62=39+ 3 =43+32=80+8 =7X10=96+ 3 =35-8=78+19=93-31=33-3 =56+ 7 =84+4 =23+19=50+ 5 =8X2 =21X3 =1100-100=22+2 =7+56=82-26=23+19=44+29=56+ 7 =64+26=82-26=63-52=12+6 =19+66=150-90=34+19=4X2 =80-22=50-39=180+ 9-18=21-7=7X10=18+71=24+4 =7X3 =85+28=800+6