Wednesday, December 10, 2008

Multiplying a number by 5

Tip: Divide the number by 2 and add a "Zero".

suppose the no is 300 . divide the no by 2 = 150 and add a "zero". So the ans= 1500

another example: 244 * 5 = 1220 .

2 comments:

Anonymous said...

What about odd numbers??Good post though...

Unknown said...

Great trick