Question

What is $81-3$ $?$

• A. 78

Answer 1

The correct option is A 78
$81-3$

Aligning numbers in the Place Value table,



For doing subtraction with only like terms.
One's digit of minuend will be subtracted by one's digit of subtrahend, ten's digit of minuend will be subtracted by ten's digit of subtrahend.

So, first we will subtract the Ones place digits together.

But $1-3$ is not possible.

So, we will borrow $1$ Tens from $8$ Tens and that will leave $7$ Tens at the Tens Place

As we know that,

$1$ Tens $=10$ Ones,

So, there will be $10+1=11$ Ones at the Ones Place.



Therefore,



Therefore, $81-3=78$.