Apr 27, 2015

Multiplication of 3 digit numbers

If you want to multiply 123 and 456 then consider 1 in 123 as a ,2 in 123 as b and 3 in 123 as c.

so the number 123 will be written as ax2 + bx +c

here x is 10 so
Here i have illustrate how to multiply 3 digit numbers using
 Vedic method  with Explanation

ax2+bx+c
=1*10*10 + 2*10  + 3
=100 + 20 + 3
=123

in same manner we take 456 as dx2 + ex + f

so now multiplication is between  ax2 + bx +c and dx2 + ex + f 

so the answer is (ad)x4 + (ae + bd)x3 + (af + be + cd)x2 + (ce+bf)x + cf

If you make this practice then multiplication be very easy for you.

so using vedic trick multiplication is as shown below.

1  2  3

4  5  6

4 3 8 7 8
 1 2 2 1   
5 6 0 8 8

You can do same method for any digit number for faster Multiplication.

5 comments:

  1. This is interesting how easily you can do it!

    ReplyDelete
  2. This is really great stuff!

    ReplyDelete
  3. Vedic maths seems reALLY COOL!

    ReplyDelete
  4. hmm it make math easy to learn for kids.

    ReplyDelete