二年級下學期口算(2000題)

1、24 - 4=+ 7X 9=X 4=36* 6=9 X 7=56十12-428* 7+ 16=3+4X 5=36+ 4=30* 5=63 - 9=6464* 8+ 16=45* 5=2 X 7* 1 =5X 5 + 23=12+ 35- 5=27+ 72 * 9=4 X 6+ 33=40* 8=21- 15+636+ 2X 2=(59-17)* 6=72 * 9+ 24=54* 9=44 - 9X 4=72* 9 X 2=4X 3+ 3X 2=35 * 7=56* 7=8X 2=X 7+ 56=56* 7-8=12* 6=X 8=21* 3-7=X 3+5=8 * 8=32* 4=82* 9=

2、()X6=3042* 7=35* ( )=728* 7=X 8=4821* 3=36* 4=18* 2=63* 7=9X 6=9X 9=X 6+ 10=X 5+ 40=81* 9-5=55 20-10=3X 9 + 46=* 3=* 9=5X 8 + 3X 2=80 2X 8=33 + 6X 0=X 4* 6=40* 8=:X 4=2061 13+20=15* 5=X 3=421 X 5=18* 9=180 60=5X 9=7X 7=(2+6)X 5=60+ 300=(10+10)* 5=83 29=5X 6=4317=21+27=32* 8=30* 6=36* 4=64* 8=5*仁15*

3、3=16* 8=42* 6=400+ 50=38+26=938=49* 7=6X 9=56-30=35* 5=27+ 25=16 2X 7 =11+ 85 =2X 2+12=2!X9+8=3X 8+8=8* 2 0=50+ 2X 8=14+ 11 =9X 5-5 =9081 =8583 1 =8X6 + 2=72 0* 4=61+ 27* 3=170 + 20=4X 7+ 8=14+ (8-5)=6-2-2=962 X 4 =521X 5=4+244 =19+6X6=5X 6+ 82=1X 3 + 23=77+ 66=5X 7-10 =25十 5+9=20-5+ 37=16+ 16 =4+7X

4、 7=8+ 5X 7 =5130+ 5=9+408 =45 + 9 =4225-5 =7X 5+8=36-6 + 29=4 X 3 0 =2X 4 + 62=36+ 69=51+ 37 =73 + 24 - 3=1X 8 7=3X 9 + 48=6X 4 19 =46 + 31 =60-10=12-2 2 =5X4+17=71 48=2614=757X 4 =28-4+ 23 =12-4 2 =4X 3+2=7X 9+9=977 =48 - 6 7 =8X 9+9=81-9+1 =10-1+8=30+10 1 =76+ 17 32 =37+ 1X 5=9+ 9X 7 =32 - 4+2=8-1

5、 X 7 =9557 =534X 1 =4+4X8=34+ 4X 4 =5-168 =926X 2 =22 + 32=9+369=88 0 =24-3-7 =4X 6 11 =36-9+ 19 =6036=13+ 8 X 8 =0+35- 7 =245-5 =4X 7+ 72=426 4 =62 10- 2=962X 3 =43+ 58=7938=70-8 X 5 =35-5+ 31 =9322 =1063-9 =63 62 =205 3=473X 2=559X 5=9X 4 10 =60+ 72 - 8 =8X 4 22=212X 3=1X90=13+ 71 =16-2-8 =624 X 4

6、 =6X6X 3=1863 - 7 =59+ 74 70 =1002X 1 =8X 5 + 45 =9X 2- 10=51-19-0 =8X 0 + 49=3X4X9=7X 0+ 31 =89-76 - 11 =32* 8 X 6=42 - 6X 2 =12* 4* 3 =36* 9X 5=144* 6* 4 =9X 9-61 =72* 8- 1 =99-9* 3=8X 5- 14=70 - 3+ 13=53-37 - 4 =74+ 31 - 16 =6X 8 + 3 =47 - 11-21 =75+ 5 X 3 =6X 4 + 61 =40* 4 5=432- 8 -9=74-8X 7 =8

7、0* 10-4 =90*9X 5=30* 5+ 58=52+ 6 X 0 =62+ 86+ 70 =30* 10+ 65 =108- 3* 4=50-1* 1 =15-1-7=75+ 24* 6 =8X2X7=4X 5- 19=28+ 30+ 94 =23-0- 18=5*1X5=12* 4* 3 =3X 7 + 68=11+ 86- 1 =72* 9- 1 =78-81* 9 =29+ 9X 2=6* 1 X 4 =26 + 93 - 52=0X 6 0=59-30* 10 =20-2X 5=87-7X 7 =22+ 35* 5 =98-47+ 0 =62-32* 4 =48* 8-0 =5

8、X 3+ 95=61+ 97-8 =73-10* 10 =8X 3+ 89=1X 0X 9=80+ 15+ 52 =18-12* 2 =56 + 71 - 23=9* 1 + 9=4+ 5X 6 =29-1X 2=57 - 13-42=72-17-24=82-74+ 72 =16*2X 0=7+ 0+ 94 =57+ 71 - 96=270* 6* 5 =16*4X 3=38 - 7+ 69=4* 1X 9=84+ 42* 6 =91-37+ 58 =12* 4X 2 =4+ 52 + 51 =1024 X 6 =2X 9* 9 =38 + 80* 8=86-73 + 1 =8X 9+ 72=

9、100* 10X 1 =28-2X 8 =48+ 43 - 21 =24* 8- 1 =21* 7* 1 =79 - 73 - 4=20-10+ 18=56+ 51 + 18 =128* 8* 8 =136- 7X 7=7781 - 9 =92-37-41 =31+ 9X 8=14+ 5X 7 =3X 7+ 20=210* 7* 3 =16+ 76- 54 =98 - 39+ 47=12-3- 1 =49+ 25+ 81 =27+ 91-42 =113- 5X 3=50寧 5 4 =68+ 1X 9=83-8- 9=72 - 8X 6 =32+ 96 - 33=2X 7-0 =89+ 93-2

10、6 =66+ 14+ 79=2221 + 43=4X 14* 7=58-6- 8=66 9 X 4 =1X 6 4=42* 7- 1 =20+ 21* 7 =6-2 + 20 =42+ 4X 6 =192* 6* 8 =12-8+ 59=28 + 0X 2 =9X 9X 6=65-3X 9=89-16-5 =9 X 0-0=3X 5+ 33=37+ 15* 3 =6956+ 39 =35 - 5-2 =1X 9- 9=19-1X 5=61-41- 18 =21 + 7X 8 =1X 30 - 6 =36+ 0X 5=72* 6* 4=30 + 69+ 53=4716-22=196* 4* 7

11、=99+ 35+ 31 =51 + 80+ 84=24+ 3X 8 =53+ 93 - 13 =20+ 46+ 62 =15- 12+ 68=24-1 X 8 =79-46- 27 =41-4X 7=8X 4 + 41 =3X 1 + 67=126-5X 6 =32* 8 X 8=7- 1+ 29 =97+ 52 - 57=5X 3-6 =80* 5* 4=58 + 0X 1 =159-8X 9 =43+ 78 - 76 =5X 9X 5 =80 - 2-8 =5010* 5 =74-38 - 32 =6X 8 + 27=6-3-0=3X 8X 5=68-20* 2 =0X 14* 7=34

12、0 X 6 =4X 9X 4=48-6* 3=1X 5X 8 =61 - 20- 36=8X 0+ 49=0X 6+ 32=48* 6 0=80+ 24- 66=44 0=4X 8+ 16=1-1-0 =95-6X 7 =24-8-2 =40-10-2 =13+ 16-24 =90- 10- 9=1187X 3 =2X 8-8 =27+ 4X 5=14+ 66- 52=42+ 0X 2 =13+ 58 + 61 =77-13- 14 =9X 24 - 4 =6X 8+ 75=71-30 - 10 =909 9=5X 32-8 =48+ 74 - 1 =9X 6- 12=77-12-3 =40

13、- 5-4 =9125 - 7 =87+ 51 - 54 =3X 9X 9 =66 + 60 6=392- 11 =32-2- 2=25+ 18-9 =3X 8 + 33=34+ 80 8 =83+ 49 + 12 =6X 5+ 51 =70 - 7- 10=674 56 =58+ 20 4 =27-3- 3=60 + 93+ 42=105-7-3 =632X 4=12-6- 1 =58 3 3 =6-3+ 39=91+ 12-4 =80-36 - 9 =60 3 5 =90+ 11-34=51-27-3 =4X 5X 9 =23+ 48+ 66=6X 6+ 88=14-7+ 36=54-9X

14、 6=9X2-1=64+ 3X 8 =10+ 78 + 3 =80-1 - 54=76 - 0-40=45-11-28=0X 6+ 72=244 2=8-2X5=72-1 十 9 =2X 3 + 64=19+ 5X 3=78 + 82 - 59=23+ 10- 10=84+ 95+ 74 =83-57-20 =7 7 + 8 =18-11-6 =2+ 8 X 8 =86+ 6X 5=64 - 8+ 0 =40-10+ 17=46-54 - 6 =29+ 49- 7 =60 3 5 =13+ 50 + 48=7880 8 =82+ 64 18 =3-6-6=40-3+ 18 =3-1-0 =79

15、-10- 1 =1 X 4+ 92 =2X 9- 3=186X 7=2X 2-0 =7-1十7=21+ 56 - 8 =24寧4寧3=8* 2-0 =56 + 8X 7 =40-10+ 68=88-68 + 8 =60-54+ 31 =65 - 36- 4=624 X 2 =60+ 33 - 16 =47-25+ 44 =36 + 10+ 65=4X 9+ 4=9X 2 4 =50*5X 9=1 X 21 - 3 =6-6+ 91 =28寧 1* 7=54* 6+ 62=40 - 5-4 =80-8-2 =24-6- 3=56* 7- 7=99 + 1 X 5 =30-3X 7 =4* 1 X

16、 3=45* 9 4=54 - 35- 4=76+ 27-9 =29+ 4X 7=16*4X 4=95 + 7X 6 =95+ 9-3 =1X 8 + 83=53+ 39-2 =60 - 6+ 23=35+ 0X 1 =9X 9 -25=12*2X 6=69 4 X 0 =79+ 6 + 23 =5X 8 6=94+ 5* 1 =36 - 8- 17=22+ 0X 3 =7X 9-1 =5+ 12* 3=44 + 32 - 2=18-2X 3 =1X 2 + 29=80+ 0X 6=78 + 28 - 4=33+ 19+ 42=49* 7X 7=13-12* 6 =58 + 6 X 3 =13

17、78 X 6=47+ 14* 2 =0X 5+ 58=16-6-2 =9X 1 X 1 =61-50 - 7 =8X 27* 9=59 + 82 - 0=16-2X 4 =62+ 80-79 =14* 7X 9=76 - 39 - 10=6540 2 =8X 7* 1 =48* 8- 3=35-4X 0 =4X 1+ 15=71+ 7X 7=5-36* 9=8-8+ 13 =60+ 71 + 65=99-8+ 81 =46-24 - 7 =97+ 19+ 88=39-32 - 3 =4X 5X 2 =51-6- 10=60 - 11-40=79-9X 8 =40* 5+ 82=2* 1 X 6

18、 =76 + 92 - 40=9X 8X 4 =77+ 79+ 57 =8+ 40+ 18=96 - 16 - 8=648* 9* 9 =9224+ 67 =4X 6X 1 =0X 14-2 =90+ 18* 3 =21* 7 0=28*4X 4=75 + 7X 2 =5317+ 46=96+ 31 97 =2+ 81 62=97- 0X 8 =36* 6 1 =1012X 5 =7X 1 X 9 =1 X 1 + 99 =92+ 80 10=102* 2=5139 5 =1 十 1 + 52 =87+ 8X 1 =8* 8+ 16=28* 7 2=30* 5+ 58=52+ 6 X 0 =6

19、2+ 86+ 70 =30* 10+ 65 =7 + 20+ 7 =10* 2 + 63 =30* 10+ 21 =4843 0 =18+ 35+ 94=60* 10 0 =10+ 40 9 =10* 2+ 60=22- 3X 7 =42+ 73 + 38=965X 8=123X 2=5X 4 + 47 =5830 + 65=3811 6 =1X 80* 8=40* 4 3 =4X 8 16=40+ 42 31 =30* 10+ 79 =84 63+ 0=28+ 7X 7 =2413+ 38 =84+ 16+ 5 =7X59=1014* 2 =7X 5X 8 =0X 1 + 71 =35 +

20、0 X 6 =10940* 4=2+ 95+ 79=92+ 7 97=61 3X 6 =14+ 51 4 =3X 70* 10=49* 7+ 52=4X 0+ 50 =8* 8 0=9X 8 + 61 =546X 8=72*8X 0 =35+ 9X 3 =70* 10X 7 =9X 1 + 0 =24* 4 4 =9789+ 33=72* 8* 3=3* 3 X 5 =28 + 5X 1 =9X 8+ 68=35+ 21 + 23 =84+ 60* 10 =13+ 40+ 87=30* 3 + 42 =424* 1 =8313 3 =46 3+ 20=89+ 12* 2 =3X 6 5 =27

21、3X 2=40* 10 1 =815X 2 =69+ 12+ 46 =3X 4 9 =78 - 20+ 63=30* 6 + 26 =22+ 71 + 26 =9X 0X 7 =69+ 69+ 74=120* 3* 8 =65+ 7X 3=1X 6X 6 =57 - 33+ 45=64* 8 0 =6X 6X 0 =40+ 2X 3=23+ 82 + 92=76+ 21* 3 =4+ 8 X 6=43+ 30* 10 =71 - 7- 1 =50* 5+ 72 =57+ 78 + 16 =94+ 7X 5=8- 1 + 77 =9112+ 34=78+ 8 X 7=40* 8- 4=42 -

22、6-2 =651+ 25 =2X 5X 3 =64+ 66+ 3 =180- 10- 3 =98+ 32 + 44=30* 10X 9 =33+ 2X 4=8寧 8 0 =8742 + 75=80+ 50 - 1 =89-1-31 =93 - 9 + 46=70+ 2 + 3 =7338 - 31 =2X 2X 2 =86 - 73+ 62=52+ 1 X 4 =413X 4=92+ 49+ 82 =90 - 8X 1 =95+ 13+ 50=34+ 40* 4 =1X 0+ 52=53 + 90* 9=2X 8X 3=79+ 5X 2=2X 9X 2 =0 X 30* 5 =7X 0 0=2

23、3+ 53+ 34 =7X 9 + 28=60* 10X 4=7362 - 7 =4X 4- 11 =91+ 97-69 =6 4* 2 =7X 0+ 34=61-20+ 57 =1X 7+ 16=1 X 27* 3 =876X 1 =96+ 59 + 16 =16* 8- 1 =85- 9X 9 =7X 4- 7=6753 + 6 =98+ 25+ 32 =55 - 42 + 78=5X 30* 3 =18-1X 5=41+ 2X 4=8X 2 + 52 =5X 63* 9 =1X 1-0 =9X 0X 8 =4 X 2 0 =80* 8* 1 =0X 2X 9 =5* 5+ 34=66 +

24、 6X 7 =63+ 91 + 20=21-3+ 6=24+ 20* 5 =9X1X4=8X 2X 7=60* 4* 5=65+ 6* 3=120- 5- 6=0X 3X 0=70-10X 9 =5446 2 =180- 10- 3 =98+ 32 + 44=30-10X 9 =33+ 2X 4=8寧 8 0 =8742 + 75=80+ 50 1 =891 31 =53 + 60 85=90+ 41 + 2 =4010+ 11 =8+ 99+ 31 =70 - 7- 10=674 56 =58+ 20* 4 =27* 3* 3=60 + 93+ 42=105-7-3 =632X 4=12*

25、6 1 =58 3 寧 3 =6-3+ 39=91+ 12* 4 =8036* 9 =70 3+ 13=5337 4 =74+ 31 16 =6X 8 + 3 =47 11 21 =75+ 5 X 3 =6X 4 + 61 =40* 4 5=432- 8 -9=748X 7 =80* 10 4 =90*9X 5=23+ 82 + 92=76+ 21 - 3 =4+ 8 X 6=43+ 30* 10 =60 11 40=799X 8 =40* 5+ 82=2* 1 X 6 =76 + 92 40=9X 8X 4=77+ 79+ 57 =8+ 40+ 18=96 16 - 8=648十9寧9 =9

26、224+ 67 =4X 6X 1 =0X 14-2 =90+ 18-3 =21* 7 0=28*4X 4=75+ 7X 2 =5317+ 46=96+ 31 97 =2+ 81 62=4 X 2 0 =80-8- 1 =0X 2X 9 =5* 5+ 34=66 + 6X 7 =63+ 91 + 20=213+ 6=24+ 20* 5 =9X1X4=8X 2X 7=60* 4* 5=65+ 6* 3=120- 5- 6=0X 3X 0=70* 10X 9 =5446 2 =180- 10- 3 =98+ 32 + 44=30* 10X 9 =33+ 2X 4=8寧 8 0 =8742 + 75=

27、80+ 50 1 =891 31 =24 - 4 4 =9789+ 33=72* 8* 3=3* 3 X 5 =16-2X 7 =91+ 85 26=2X 2X 2 =2X 9X 8 =3X 8X 8 =2-1 0=50+ 2X 8=14+ 11 25 =9X 5X 5 =9081 + 2 =8583 1 =8X 6+ 79=6-2-2=962 X 4 =521X 5=4X 24 - 4=19+6X6=5X 6+ 82=1X 3 + 63=77+ 66 49 =5X 70- 10=255 X 9 =20-5+ 37=6316+ 16 =4X7X7=80+ 5X 7 =5130 + 5 =9X

28、40- 10=45 + 91 + 29=7225 - 5 =7X 5X 0 =60-6+ 29=4 X 3 0 =0X 4+ 62=36+ 69 16 =51+ 37 59 =73 + 24 - 3=1X 8 7=3X 0 + 48=6X419=60 3 5 =13+ 50 + 48=7880 8 =82+ 64 18 =36-6=403+ 18 =3-1 0 =7910- 1 =46 + 91 + 80=60-10+ 99=12-2 2=5X 4X 7 =60 6 7 =8X 27-9 =81-9- 1 =10-1X 8=30 - 10 1 =76+ 57 79=37+ 1X 5=90+ 9

29、X 7=32 - 2-2 =10-1 X 7 =9557+ 44 =534X 1 =4+4X8=34+ 4X 4 =5X 16- 8=926X 2=22 + 32 + 97=9X 36 - 9 =88 0 =168-3-7 =4X 6 11 =369 + 69 =0+ 60 36=13+ 8 X 8=0 X 35 7 =245-5 =4X 7+ 98=426 4=62 10- 1 =962X 3 =43+ 58 67 =7938+ 40 =42 - 6X 2 =124 3 =369X 5=1446 4 =9X 9 61 =72-8 1 =999- 3=8X 5 14=7468062152849

30、682442192653719537912654374684870 - 3+ 13=5337 - 4 =47 - 11-21 =75+ 5 X 3 =432- 8 -9=748X 7 =30* 5+ 58=52+ 6 X 0 =108- 3* 4=501* 1 =8X2X7=4X 5- 19=98 - 39+ 47=12* 3* 1 =113- 5X 3=50* 5 4 =72* 8X 6 =32+ 96 - 33=66 + 14+ 79=2221 + 43=66 9 X 4 =1X 6 4=6* 2 + 20 =42+ 4X 6 =28 + 0X 2 =9X 9X 6=9 X 0-0=3X

31、5+ 33=35* 5-2 =1X 9* 9=51 + 80+ 84=24+ 3X 8 =15- 12+ 68=241 X 8 =8X 4 + 41 =3X 1 + 67=7* 1+ 29 =97+ 52 - 57=58 + 0X 1 =1598X 9=80* 2* 8 =5010* 5 =6*3-0=3X 8X 5=34 0 X 6 =4X 9X 4=+ 31 - 16 =6X 8 + 3 =X 4 + 61 =40* 4 5=* 10-4 =90*9X 5=+ 86+ 70 =30* 10+ 65 =-1-7=75+ 24* 6 =+ 30+ 94 =23-0- 18=+ 25+ 81 =

32、27+ 91-42 =+ 1X 9=83-8- 9=X 7-0 =89+ 93-26 =X 14* 7=58-6- 8=* 7- 1 =20+ 21* 7 =* 6* 8 =12-8+ 59=-3X 9=89-16-5 =+ 15* 3 =6956+ 39 =-1X 5=61-41- 18 =+ 93 - 13 =20+ 46+ 62 =-46- 27 =41-4X 7=-5X 6 =32* 8 X 8=X 3-6 =80* 5* 4=+ 78 - 76 =5X 9X 5 =-38 - 32 =6X 8 + 27=-20* 2 =0X 14* 7=-6* 3=1X 5X 8 =76 - 0 4

33、0=4511 28=0X 6+ 72=24十 4 2=8-2X5=72-1 十 9 =2X 3 + 64=19+ 5X 3=78+ 82 59=23+ 10 十 10=84+ 95+ 74 =8357 20 =35 4X 0 =4X 1+ 15=71+ 7X 7=536 - 9=8-8+ 13 =60+ 71 + 65=998+ 81 =4624 7 =97+ 19+ 88=3932 3 =4X 5X 2 =516 10=60 11 40=799X 8 =40-5+ 82=2-1 X 6 =76 + 92 40=9X 8X 4=77+ 79+ 57 =8+ 40+ 18=7寧 7 + 8 =1

34、811 6 =2+ 8 X 8 =86+ 6X 5=64 - 8+ 0 =40-10+ 17=4654 - 6 =29+ 49- 7 =4X 0+ 50 =8寧 8 0=9X 8 + 61 =546X 8=72- 8X 0 =35+ 9X 3 =70-10X 7 =9X 1 + 0 =24 - 4 4 =9789+ 33=72-8- 3=3寧 3 X 5 =28 + 5X 1 =9X 8+ 68=35+ 21 + 23 =84+ 60- 10 =13+ 40+ 87=30-3 + 42 =424寧 1 =8313 3 =46 3+ 20=89+ 12-2 =3X 6 5 =273X 2=5-1

35、X5=12寧4寧3 =3X 7 + 68=11+ 86 1 =24 - 4=7+ 63=9 X 4=36寧6=9X 7=56 - 8=28+ 6=7X 5=36+ 4=30寧 5=63-9=64-8=38+16= 45-5=7-1 =25+23=12+ 35=27+ 71=46+ 33=40- 8=21 + 15=36+ 22=59+18=72+ 24=4129=44 9= 72 + 16=43+32=358=56- 7=21 7=7X 3=8-8=32!寧4=809=()X 6=30 42 - 7=356=28- 7=()X 8=4821-3=36寧4=18-2=63| 寧7=9X 6=9X

36、 9=46+ 10=65+ 40=81-9=5520=9 + 46=9-3=9 一9=58+ 32=8028=33 + 60=54寧6=40-8=:X4=2061 13=15-5=9X 3=4215=18-9=18060=72 40=47+ 8=14 + 85=61+ 27=170+ 20=5X 9=7X 7=73+16=60+ 300=10-5=83 29=5X 6=43-17=21+ 27=32-8=30-6=；36 -4=64-8=51 =15 -3=16-8=42 -6= 400 + 50= 38 + 26=938=49- 7=6 X9=5630=35*5=27+ 25=8X 2=7+

37、 56=56 - 7=12-6=4 X 2=27-9=53+8=4X 9=8- 2=32- 8=8-仁9X 9=84+7=80- 44=1800- 900=400 1800=420+80=430+1000=500- 60=89- 8=64 8=34+9=14- 7= 5+58= 64 - 8=6X 3=9X 9= 72 - 8= 78+15=83 20= 43 30=9-仁 280+450=7- 7= 3600+5800=8X 9+2仁 4600+4700=730- 190=3700 370= 8500 5500= 3200+5100=96- 42=1200 400=830- 300= 800

38、+900=58 36=7000+3000= 5X 7= 72 - 9=36十 6= 81 - 9= 42+13= 24 - 3= 24+8= 27 3= 42+13=42 6=7+44= 42 - 7= 64 8= 21 - 3=4X 8= 54 - 9= 49 - 7= 42 - 7=35- 7=19+4仁 24 6X 3= 4 X 8 5=27- 3+6= 56 - 7 3=49-9+7=4X 3-2=6- 3X 7=8- 4X 3=6X 5+37=12-4+18=164X 8= 8 - 4+48= 25 - 5+36=6 X 842=2X 8寧 4= 8 X 9寧 9= 36 寧 6寧

39、3= 9 寧 9 X 6=42 - 7X 6= 96 80+7= 64 40 8= 40 4+20=7X 5 8= 14 - 7+25= 15 - 5+8= 8 X 9 8=1X 2+20=16 8+30= 7 X 7+8= 54 - 6+33=510+200=15 45- 9= 11 40-8= 7+1 X 8=130+80=46- 8=8 X 5 7= 9 X 3 8=30* 6= 36 寧 4= 4 X 5+44=48-8+7=1800+200= 93- 80= 6 X 5+37=10 8* 1=7X 8=73- 4=3X 8*4=7X 6+10=72* 8= 64 8= 24 X 0=

40、 71 7+30=6+ 2X 8=35 9=70- 5X 9= 8 X 9+21=27* 9= 53+8=4X 9= 8 * 2= 32 * 8= 8 * 1= 9 X 9= 84+7=80 44= 1800 900= 4900 1800= 420+80=430+1000= 500 60= 89 8= 64 8= 34+9=14* 7= 5+58= 64 * 8= 6 X 3= 9 X 9=72* 8= 78+15=83 20= 43 30= 9 * 1 = 280+450=7* 7= 3600+5800= 8 X 9+2仁4600+4700= 730 190= 3700 370= 8500

41、5500= 3200+5100= 96 42= 1200 400= 830 300=800+900= 58 36= 1 000+3000= 5X 7=7 2-9=36- 6= 81 - 9= 42+13= 24 - 3= 24+8= 27 3=42+13= 42 6= 7+44= 42 - 7= 64 8=21-3= 4 X 8= 54 - 9= 49 - 7= 42 - 7=35- 7= 19+4仁 24 6X 3= 4 X 8 5= 27 - 3+6=56- 7 3= 49 - 9+7= 4 X 3-2= 6 - 3X 7= 8 - 4X 3= 6X 5+37= 12 - 4+18= 16

42、 - 4X 8= 8 - 4+48= 25 - 5+36= 6X 842= 2 X 8* 4= 8 X 9* 9= 36 * 6* 3= 9 * 9X 6=42 - 7X 6= 96 80+7= 64 40 8= 40 4+20=7X 5 8= 14 * 7+25= 15 * 5+8= 8 X 9 8= 1 X 2+20=16* 8+30=7X 7+8= 1800+200= 93 80= 6 X 5+37=10 8* 1= 7 X 8= 73 4= 3 X 8*4= 7 X 6+10=72* 8= 64 8= 24 X 0= 71 7+30= 6 + 2X8 =35 9= 48 * 8+7=

43、70 5X 9= 8 X 9+21= 54 * 6+33=510+200= 7+1 X 8= 130+80= 46 8= 8 X 5 7=9X 3 8= 30 * 6= 36 *4= 4 X 5+44= 11 40* 8=47+53= 76+24= 29+67=95-89= 79-56=52+39=34+62=56+24=80-56=65+32=60-46=67-38=66-36=71+26=84-36=15+19=55-16=55+29= 69+26=64+36=74+18=35+19=54+28=58-46= 65+25=53+46=36+38= 39+36=25+57=37+32=76-43=26+48=13+79=46+37=84-56=87-56=76+16=39+21=29+42=61+22=27+53=75-46=78-56=52+38=63+28=56-26=59+23=29+36=36+28=45+25=52+17=58+14=80-24= 88-56=93-65=38+56=24+37=51-15= 36+36=97-58=57+15=45+36=26+56=61+39= 26+58=49+16=55+26=60-32=64+36=29+74=25+56= 73-29=69+34=28+58= 28+36=29+66=64-