2007-06-16 21:52:51 · 3 answers · asked by Neelesh D 2 in Science & Mathematics ➔ Mathematics
there are lot of methods to multiply 3 by 3 digit numbers in a single step. refer vedic mathematics or trachtenberg maths
one method can be explained in detail as follow
http://www.curiousmath.com/index.php?name=News&file=article&sid=52
2007-06-16 22:23:38 · answer #1 · answered by veeraa1729 2 · 0⤊ 0⤋
You sure can.
The question is, Is it worth it...
lets take 111 times 500 for instance
The multi step way would have you:
remember that 1 x 500 = 500
remember the tens and hundres placeholders/decimals
add the collected numbers 500 +5000 + 50000
To arive at the result 555,000
The only way to do a one step method is to memorize it.
Grab your flashcard and memorize 111 x 500 = 555,000
This is doable, and it certainly isn't going to change.
However, consider that you wanted to memorize all possible 3 by 3 digit numbers. 999 *999 /2 = 499000. 499000 flash cards huh? The multiple step looks pretty good after all...
2007-06-17 05:09:03 · answer #2 · answered by ericnutsch 5 · 1⤊ 0⤋
If a, b , c are the digits,
100a+10b+c = Is the number
2007-06-17 04:58:20 · answer #3 · answered by J.SWAMY I ఇ జ స్వామి 7 · 0⤊ 2⤋