Shortcut to subtract any 5 or 6 digit number in seconds

Subtraction is the opposite of addition. Suppose we have to subtract two numbers such as 15-2=13.Then,In this subtraction the first number 15 is called the minuend meaning to be made less and the number 2 is the subtrahend meaning that which is to be subtracted and the number 13 is the difference.
Minuend-subtrahend=difference

1  6  2
–   5  1
———
1 4  1
———
We can easily get the difference whether we do it from right or left.

But what if we had to subtract 45 from 64
if we start using the method of borrowing that we are so used to from our school days no doubt we will arrive at the difference but it is not that easy.

There is a simple trick that you can use here to get the
difference easily and within seconds.

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Shortcut to subtract any 5 or 6 digit steps

Lets discuss the steps now
Step 1: Subtract the numbers of the subtrahend from the Minuend 
Step 2: If any digit in subtrahend is more than Minuend then add a circle on difference you get on subtracting.
Step 3:Now wherever circle is there it means the complement of the number(10- number)
Step 4:If there is any digit before the circled number then 1 must be subtracted from the number.

We shall now consider some examples to understand better

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Examples on shortcut to subtract 5 or 6 digit number 

Example 1: 47-28=?
Observe that the Minuend is 47 and Subtrahend is 28 where the unit’s place digit is more than the minuend’s units digit.
First we subtract as usual  
  4  7
– 2  8
  ———
   2 1  
  ———-      

Note that 8 is more than 7 so we add a circle on 1
We find Complement of the difference(1)=10-1=9
Subtract 1 from previous number(2) as the next digit is circled
We get 
  4 7       

 -2 8
 ———
 2  1