There are 5 basic rules of vedic maths that makes the calculation more easy and less time consuming.

5 rules are: –

Nikhilam Sutra

In this method, Numbers can be multiplied which are close to the power of 10.

Gyarasguna Sutra 

In this method, numbers can be easily multiplied by 11. “Gyarasguna word split into three words . Gyara mean 11, guna mean Multiplication and Sutra mean method.

write non 11 number twice
Add “0” to one of the number
Add both the numbers.

Ekanunena Purneva Sutra 

In this method, numbers can be multiplied in which one of the number is multiplied by 9, 99, 999 …….
First, subtract 1 from 11, then subtract the resulting number from 99 or 999.

Antyaordasake Pi.

In this method, Multiplication can be done as follows –
Example –
(1) 42 x 48
First Number = 42
Second number = 48
Add 1 to the first digit of the second number –
= 4 + 1 = 5.
Now Multiply first digits of both numbers
4 x 5 = 20 .
Now, Multiply second digits of both numbers
2 x 8 = 16.
So, 42 x 48 = 2016

Navamguna Sutra 

In this method, Multiplication can be done as follows –
Example –
(1) 42 x 9
42 (10-1)
42 x 10 – 42 x 1
420 – 42 = 378.
So, 42 x 9 = 378.