How to Remember the 9's in Multiplication Using Your Hands

culled from:wikihow.com

Steps

1

Spread out your hands in front of you. Make sure that all ten fingers are showing.

2. 
   2
   From the left, count as many fingers as the number you want to multiply nine with. Say you want to multiply nine by four. Count four fingers from the left and then put the fourth finger down.
3. 
   3
   Count the fingers to the left of the folded finger. In this example, there are three. This is the first digit of your answer. Write it down.
4. 
   4
   Count the fingers to the right of the folded finger. In this example, there are six. This is the second digit of the answer. Write it down to the right of the number you wrote down in the previous step. In this case, the number will now read 36 or thirty-six.
5. 
   5
   There you go! You have the answer to the multiplication problem.

More examples using this method

1. 
   1
   One multiplied by nine.
2. 
   2
   Two multiplied by nine.
3. 
   3
   Three multiplied by nine.
4. 
   4
   Four multiplied by nine.
5. 
   5
   Five multiplied by nine.
6. 
   6
   Six multiplied by nine.
7. 
   7
   Seven multiplied by nine.
8. 
   8
   Eight multiplied by nine.
9. 
   9
   Nine multiplied by nine.
10. 
    10
    Now, almost everyone knows what 9x10 is. 9x10=90!