Wednesday, January 30, 2008
Help with the Multiplication Table
I came across this for anyone who has a child having trouble learning their times table.
http://math.about.com/cs/arithmetic/a/timestables.htm
There are also worksheets and a Multiplication Grid up to 12 you can print out at this site.
A trick for the 9 times
Hold your hands in front of you with your fingers spread out.
For 9 X 3 bend your third finger down. (9 X 4 would be the fourth finger etc.)
You have 2 fingers in front of the bent finger and 7 after the bent finger
Thus the answer must be 27
This technique works for the 9 times tables up to 10.
The 11 Times for two diget numbers
Multiply 11 by 18. Jot down 1 and 8 with a space between it. 1 --8.
Add the 8 and the 1 and put that number in the middle: 198
http://math.about.com/cs/arithmetic/a/timestables.htm
There are also worksheets and a Multiplication Grid up to 12 you can print out at this site.
A trick for the 9 times
Hold your hands in front of you with your fingers spread out.
For 9 X 3 bend your third finger down. (9 X 4 would be the fourth finger etc.)
You have 2 fingers in front of the bent finger and 7 after the bent finger
Thus the answer must be 27
This technique works for the 9 times tables up to 10.
The 11 Times for two diget numbers
Multiply 11 by 18. Jot down 1 and 8 with a space between it. 1 --8.
Add the 8 and the 1 and put that number in the middle: 198
0 Comments:
Post a Comment
<< Home