 You find patterns.  You use rhymes.  You use stories.  You relate them to what you already know.

 0 x 3 = 0 x 7 = 0 x 4 = 0 x 1 = 0 x 0 = 0 x 9 = 0

0 x 8 =0

 1 x 3 = 3 x 7 = 7 x 4 = 4 x 1 = 1 x 2 = 2 x 9 = 9

1 x 5 =5

 2 x 3 = 6 x 7 = 14  2 x 4 = 8 x 1 = 2 x 2 = 4 x 9 = 18

2 x 5 =10

 5 x 3 = 1.5  5 x 7 = 3.5  5 x 8 = 4 x 1 =.5  5 x 2 = 1 x 6 = 3

 5 x 3 =  5 x 7 =  5 x 5 =  5 x 1 =  5 x 9 =

5 x 7 =3 5

5 x 3 =1 5

5 x 9 =4 5

5 x 5 =2 5

 5 x 2 =  5 x 6 =  5 x 4 =  5 x 8 =  5 x 10 =

5 x 8 =4 0

5 x 6 =3 0

5 x 4 =2 0

5 x 2 =1 0

 9 x 3 = 2 x 7 = 6 x 8 = 7 x 1 = 0 x 2 = 1 x 6 = 5

 9 x 3 = 2  9 x 7 = 6  9 x 8 = 7  9 x 1 = 0  9 x 2 = 1  9 x 6 = = = = = = =

9 x 7 =6 3

9 x 8 =7 2

9 x 9 =8 1

9 x 6 =5 4

9 x 5 =4 5

9 x 3 =2 7

9 x 4 =3 6

9 x 2 =1 8

 6 x 2 = 1 x 4 = 2 x 6 = 3 x 8 = 4

 6 x 2 = 1  6 x 4 = 2  6 x 6 = 3  6 x 8 =

6 x 6 =3 6

6 x 2 =1 2

6 x 8 =4 8

6 x 4 =2 4