乘法口诀40000道练习题

1、1× 1=2 × 2=8 × 8 =5 × 2 =3 × 7 =1× 2=3 × 2=8 × 5 =4 × 8 =3 × 6 =1× 3=4 × 2=3 × 4 =8 × 3 =2 × 4 =1× 4=5 × 2=5 × 8 =2 × 7 =6 × 7 =1× 5=6 × 2=6 × 6 =6 × 8 =7 × 3 =1× 6=7 

2、15; 2=9 × 6 =6 × 7 =4 × 4 =1× 7=8 × 2=2 × 6 =2 × 3 =8 × 5 =1× 8=9 × 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 × 3 =2 × 2 =3 × 6 =1 × 3=1 × 4=1 × 5=1 × 6=1 × 7=2 × 3=2 × 4=2 ×

3、5=2 × 6=2 × 7=3 × 3=3 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8

4、 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 &#

5、215; 9=3 × 10=2 × 2 =4 × 2 =4 × 8=4 × 9=4 × 10=5 × 3 =6 × 7 =5 × 8=5 × 9=5 × 10=2 × 8 =2 × 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 × 5 =7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 &

6、#215; 10=7 × 4 =8 × 3 =5 × 2=5 × 8 =2 × 7 =6 × 7 =3 × 2=6 × 2=6 × 6 =6 × 8 =7 × 3 =4 × 2=7 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=8 × 2=2 × 6 =2 × 3 =8 × 5 =6 × 2=9 × 2=6 × 8 =5 × 5 =

7、6 × 5 =7 × 2=3 × 3=3 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8

8、× 3=8 × 4=8 × 5=8 × 6=8 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 

9、15; 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =10 × 3=10 × 4=10 × 5=10 &#

10、215; 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 × 9=3 × 10=2 × 2 =4 × 2 =4 × 8=4 × 9=4 × 10=5 × 3 =6 × 7 =5 × 8=5 × 9=5 × 10=2 × 8 =2 &

11、#215; 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 × 5 =7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 × 10=7 × 4 =8 × 3 =5 × 2=5 × 8 =2 × 7 =6 × 7 =3 × 2=6 × 2=6 × 6 =6 × 8 =7 × 3 =4 × 2=7

12、 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=8 × 2=2 × 6 =2 × 3 =8 × 5 =6 × 2=1× 5=6 × 2=6 × 6 =6 × 8 =7 × 3 =1× 6=7 × 2=9 × 6 =6 × 7 =4 × 4 =1× 7=8 × 2=2 × 6 =2 × 3 =8 × 5 =1× 8=9 &#

13、215; 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 × 3 =2 × 2 =3 × 6 =1 × 3=1 × 4=1 × 5=1 × 6=1 × 7=2 × 3=2 × 4=2 × 5=2 × 6=2 × 7=3 × 3=3 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4

14、 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 &#

15、215; 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1

16、× 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =7 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=8 × 2=2 × 6 =2 × 3 =8 × 5 =6 × 2=9 × 2=6 × 8 =5 × 5 =6 × 5 =7 × 2=3 × 3=3 × 4=3 × 5=3

17、 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 2=6 × 6 =6 × 8 =7 × 3 =5 × 4=7 × 2=9 × 6 =6 × 7 =4 × 4 =6 × 4=8 × 2=2 × 6 =2 × 3 =8 × 5 =7 

18、5; 4=9 × 2=6 × 8 =5 × 5 =6 × 5 =4 × 4=10 × 2=4 × 3 =2 × 2 =3 × 6 =7 × 6=1 × 4=1 × 5=1 × 6=1 × 7=4 × 6=2 × 4=2 × 5=2 × 6=2 × 7=5 × 6=8 × 3=8 × 4=8 × 5=8 × 6=6 × 6=9 × 3=9

19、× 4=9 × 5=9 × 6=7 × 6=10 × 3=10 × 4=10 × 5=10 × 6=8 × 6=1 × 8=1 × 9=1 × 10=2 × 7 =9 × 6=2 × 8=2 × 9=2 × 10=5 × 2 =10 × 6=10 × 3=10 × 4=10 × 5=10 × 6=1× 7=8 × 2=2 × 6 =2 &

20、#215; 3 =8 × 5 =1× 8=9 × 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 × 3 =2 × 2 =3 × 6 =1 × 3=1 × 4=1 × 5=1 × 6=1 × 7=2 × 3=2 × 4=2 × 5=2 × 6=2 × 7=3 × 3=3 × 4=3 × 5=3 × 6=3 × 7

21、=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9

22、× 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 

23、15; 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 ×

24、5 =10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 × 9=3 × 10=2 × 2 =4 × 2 =4 × 8=4 × 9=4 × 10=5 × 3 =6 × 7 =5 

25、15; 8=5 × 9=5 × 10=2 × 8 =2 × 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 × 5 =7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 × 10=7 × 4 =8 × 3 =5 × 2=5 × 8 =2 × 7 =6 × 7 =3 × 2=6 × 2=6 &#

26、215; 6 =6 × 8 =7 × 3 =4 × 2=7 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=8 × 2=2 × 6 =2 × 3 =8 × 5 =6 × 2=1× 5=6 × 2=6 × 6 =6 × 8 =7 × 3 =1× 6=7 × 2=9 × 6 =6 × 7 =4 × 4 =1× 7=8 × 2=2 

27、5; 6 =2 × 3 =8 × 5 =1× 8=9 × 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 × 3 =2 × 2 =3 × 6 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 × 9=3 × 10=2 × 2 =4 × 2 =4 × 8=4 × 9=4 × 10=5 

28、15; 3 =6 × 7 =5 × 8=5 × 9=5 × 10=2 × 8 =2 × 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 × 5 =7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 × 10=7 × 4 =8 × 3 =5 × 2=5 × 8 =2 × 7 =6 × 7 =3

29、× 2=6 × 2=6 × 6 =6 × 8 =7 × 3 =4 × 2=7 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=8 × 2=2 × 6 =2 × 3 =8 × 5 =6 × 2=9 × 2=6 × 8 =5 × 5 =6 × 5 =7 × 2=3 × 3=3 × 4=3 × 5=3 × 6=3 × 7=4 &#

30、215; 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=2 × 4=2 × 5=2 × 6=2 × 7=5 × 6=8 × 3=8 × 4=8 ×

31、; 5=8 × 6=6 × 6=9 × 3=9 × 4=9 × 5=9 × 6=7 × 6=10 × 3=10 × 4=10 × 5=10 × 6=8 × 6=1 × 8=1 × 9=1 × 10=2 × 7 =9 × 6=2 × 8=2 × 9=2 × 10=5 × 2 =10 × 6=10 × 3=10 × 4=10 × 5=10 ×

32、 6=1× 7=8 × 2=2 × 6 =2 × 3 =8 × 5 =1× 8=9 × 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 × 3 =2 × 2 =3 × 6 =1 × 3=1 × 4=1 × 5=1 × 6=1 × 7=2 × 3=2 × 4=2 × 5=2 × 6=2 × 7=3 × 3=3 &#

33、215; 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 ×

34、; 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =6 × 3=6 × 4=6 × 5=6 × 6=6 × 7

35、=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 ×

36、 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 

37、15; 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6

38、 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 × 9=3 × 10=2 × 2 =4 × 2 =4 × 8=4 × 9=4 × 10=5 × 3 =6 × 7 =5 × 8=5 × 9=5 × 10=2 × 8 =2 × 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 × 5

39、=7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 × 10=7 × 4 =8 × 3 =5 × 2=5 × 8 =2 × 7 =6 × 7 =3 × 2=6 × 2=6 × 6 =6 × 8 =7 × 3 =4 × 2=7 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=5 ×

40、3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 ×

41、5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 &#

42、215; 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =6 ×

43、; 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=1× 7=8 × 2=2 × 6 =2 × 3 =8 × 5 =1× 8=9 × 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 

44、5; 3 =2 × 2 =3 × 6 =1 × 3=1 × 4=1 × 5=1 × 6=1 × 7=2 × 3=2 × 4=2 × 5=2 × 6=2 × 7=3 × 3=3 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 

45、5; 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 &#

46、215; 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=9 × 3=9 × 4=9 × 5=9

47、 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 ×

48、7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 × 9=3 × 10=2 × 2 =4 × 2 =4 × 8=4 × 9=4 × 10=5 × 3 =6 × 7 =5 × 8=5 × 9=5 × 10=2 × 8 =2 × 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 ×

49、; 5 =7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 × 10=7 × 4 =8 × 3 =5 × 2=5 × 8 =2 × 7 =6 × 7 =3 × 2=6 × 2=6 × 6 =6 × 8 =7 × 3 =4 × 2=1× 1=2 × 2=8 × 8 =5 × 2 =3 × 7 =1×

50、; 2=3 × 2=8 × 5 =4 × 8 =3 × 6 =1× 3=4 × 2=3 × 4 =8 × 3 =2 × 4 =1× 4=5 × 2=5 × 8 =2 × 7 =6 × 7 =1× 5=6 × 2=6 × 6 =6 × 8 =7 × 3 =1× 6=7 × 2=9 × 6 =6 × 7 =4 × 4 =1× 7=8 × 2=

51、2 × 6 =2 × 3 =8 × 5 =1× 8=9 × 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 × 3 =2 × 2 =3 × 6 =1 × 3=1 × 4=1 × 5=1 × 6=1 × 7=2 × 3=2 × 4=2 × 5=2 × 6=2 × 7=3 × 3=3 × 4=3 × 5=3 

52、5; 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 ×

53、3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 × 9=3 × 10=2 × 2 =4 × 2 =4 × 8=4 ×

54、9=4 × 10=5 × 3 =6 × 7 =5 × 8=5 × 9=5 × 10=2 × 8 =2 × 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 × 5 =7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 × 10=7 × 4 =8 × 3 =5 × 2=5 × 8 =2 ×

55、; 7 =6 × 7 =3 × 2=6 × 2=6 × 6 =6 × 8 =7 × 3 =4 × 2=7 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=8 × 2=2 × 6 =2 × 3 =8 × 5 =6 × 2=9 × 2=6 × 8 =5 × 5 =6 × 5 =7 × 2=3 × 3=3 × 4=3 × 5=3 ×

56、; 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=4 × 3

57、=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=1× 1=2 × 2=8 × 8 =5

58、× 2 =3 × 7 =1× 2=3 × 2=8 × 5 =4 × 8 =3 × 6 =1× 3=4 × 2=3 × 4 =8 × 3 =2 × 4 =1× 4=5 × 2=5 × 8 =2 × 7 =6 × 7 =1× 5=6 × 2=6 × 6 =6 × 8 =7 × 3 =1× 6=7 × 2=9 × 6 =6 × 7 =4 

59、15; 4 =1× 7=8 × 2=2 × 6 =2 × 3 =8 × 5 =1× 8=9 × 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 × 3 =2 × 2 =3 × 6 =1 × 3=1 × 4=1 × 5=1 × 6=1 × 7=2 × 3=2 × 4=2 × 5=2 × 6=2 × 7=3 × 3=

60、3 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 &

61、#215; 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 × 9=3 × 10=2 × 2 =4 &#

62、215; 2 =4 × 8=4 × 9=4 × 10=5 × 3 =6 × 7 =5 × 8=5 × 9=5 × 10=2 × 8 =2 × 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 × 5 =7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 × 10=7 × 4 =8 × 3 =5

63、× 2=5 × 8 =2 × 7 =6 × 7 =3 × 2=6 × 2=6 × 6 =6 × 8 =7 × 3 =4 × 2=7 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=8 × 2=2 × 6 =2 × 3 =8 × 5 =6 × 2=9 × 2=6 × 8 =5 × 5 =6 × 5 =7 × 2=3 × 3=3

64、 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 &#

65、215; 6=8 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=1×

66、 1=2 × 2=8 × 8 =5 × 2 =3 × 7 =1× 2=3 × 2=8 × 5 =4 × 8 =3 × 6 =1× 3=4 × 2=3 × 4 =8 × 3 =2 × 4 =1× 4=5 × 2=5 × 8 =2 × 7 =6 × 7 =1× 5=6 × 2=6 × 6 =6 × 8 =7 × 3 =1× 6=7 × 2=9

67、 × 6 =6 × 7 =4 × 4 =1× 7=8 × 2=2 × 6 =2 × 3 =8 × 5 =1× 8=9 × 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 × 3 =2 × 2 =3 × 6 =1 × 3=1 × 4=1 × 5=1 × 6=1 × 7=2 × 3=2 × 4=2 × 5=2 

68、15; 6=2 × 7=3 × 3=3 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 ×

69、 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 × 9=

70、3 × 10=2 × 2 =4 × 2 =4 × 8=4 × 9=4 × 10=5 × 3 =6 × 7 =5 × 8=5 × 9=5 × 10=2 × 8 =2 × 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 × 5 =7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 × 1

71、0=7 × 4 =8 × 3 =5 × 2=5 × 8 =2 × 7 =6 × 7 =3 × 2=6 × 2=6 × 6 =6 × 8 =7 × 3 =4 × 2=7 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=8 × 2=2 × 6 =2 × 3 =8 × 5 =6 × 2=9 × 2=6 × 8 =5 × 5 =6 ×

72、; 5 =7 × 2=3 × 3=3 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 ×

73、3=8 × 4=8 × 5=8 × 6=8 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=1× 1=2 × 2=8 × 8 =5

74、 × 2 =3 × 7 =1× 2=3 × 2=8 × 5 =4 × 8 =3 × 6 =1× 3=4 × 2=3 × 4 =8 × 3 =2 × 4 =1× 4=5 × 2=5 × 8 =2 × 7 =6 × 7 =1× 5=6 × 2=6 × 6 =6 × 8 =7 × 3 =1× 6=7 × 2=9 × 6 =6 × 7 =4 &#

75、215; 4 =1× 7=8 × 2=2 × 6 =2 × 3 =8 × 5 =1× 8=9 × 2=6 × 8 =5 × 5 =6 × 5 =1× 9=10 × 2=4 × 3 =2 × 2 =3 × 6 =1 × 3=1 × 4=1 × 5=1 × 6=1 × 7=2 × 3=2 × 4=2 × 5=2 × 6=2 × 7=3 × 3

76、=3 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8

77、× 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2 × 8=2 × 9=2 × 10=5 × 2 =9 × 5 =3 × 8=3 × 9=3 × 10=2 × 2 =4 &

78、#215; 2 =4 × 8=4 × 9=4 × 10=5 × 3 =6 × 7 =5 × 8=5 × 9=5 × 10=2 × 8 =2 × 4 =6 × 8=6 × 9=6 × 10=7 × 3 =4 × 5 =7 × 8=7 × 9=7 × 10=2 × 8 =8 × 4 =8 × 8=8 × 9=8 × 10=7 × 4 =8 × 3 =5

79、 × 2=5 × 8 =2 × 7 =6 × 7 =3 × 2=6 × 2=6 × 6 =6 × 8 =7 × 3 =4 × 2=7 × 2=9 × 6 =6 × 7 =4 × 4 =5 × 2=8 × 2=2 × 6 =2 × 3 =8 × 5 =6 × 2=9 × 2=6 × 8 =5 × 5 =6 × 5 =7 × 2=3 × 3=

80、3 × 4=3 × 5=3 × 6=3 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 &

81、#215; 6=8 × 7=4 × 3=4 × 4=4 × 5=4 × 6=4 × 7=5 × 3=5 × 4=5 × 5=5 × 6=5 × 7=6 × 3=6 × 4=6 × 5=6 × 6=6 × 7=7 × 3=7 × 4=7 × 5=7 × 6=7 × 7=8 × 3=8 × 4=8 × 5=8 × 6=8 × 7=9 × 3=9 × 4=9 × 5=9 × 6=9 × 7=10 × 3=10 × 4=10 × 5=10 × 6=10 × 7=1 × 8=1 × 9=1 × 10=2 × 7 =6 × 3 =2