Vedic Maths - Tutorial 5 <http://vedicmaths.110mb.com/tutorial5.html>
An elegant way of multiplying numbers using a simple pattern.
- *21 x 23 = 483*
This is normally called long multiplication but
actually the answer can be written straight down
using the VERTICALLY AND CROSSWISE
formula.
We first put, or imagine, 23 below 21:
There are 3 steps:
a) Multiply *vertically on the left*: 2 x 2 = *4*.
This gives the first figure of the answer.
b) Multiply *crosswise and add*: 2 x 3 + 1 x 2 = *8*
This gives the middle figure.
c) Multiply *vertically on the right*: 1 x 3 = *3*
This gives the last figure of the answer.
*And thats all there is to it.*
- Similarly *61 x 31 = 1891*
- 6 x 3 = *18*; 6 x 1 + 1 x 3 = *9*; 1 x 1 = *1*
------------------------------
Multiply any 2-figure numbers together by mere mental arithmetic!
If you want 21 stamps at 26 pence each you can
easily find the total price in your head.
There were no carries in the method given above.
However, there only involve one small extra step.
- *21 x 26 = 546*
The method is the same as above
except that we get a 2-figure number, 14, in the
middle step, so the 1 is carried over to the left
(4 becomes 5).
http://vedicmaths.110mb.com/tutorial5.html
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"AJAX_Tools" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/ajax_tools?hl=en
-~----------~----~----~----~------~----~------~--~---
