Question

Match the correct pair of subtraction of two numbers with their difference.

• A. $39001$
• B. $99$
• C. $979$

Answer 1

$100-1$

Aligning both the numbers according to Place Value table,



For doing subtraction,
Ones digit of subtrahend must be subtracted from ones digit of minuend, tens digit of subtrahend must be subtracted from tens digit of minuend and so on ...

So, first subtracting the digits at Ones place, we get

$0-1$, which is not possible.

So, we will borrow $1$ from Tens place.

But, Tens place of minuend has also $0$ in its digit place,

So we will borrow from $1$ Hundred from Hundreds place of minuend,

As we know that,

$1$ Hundred $=10$ Tens

Therefore,



Now, as $1$ Tens $=10$ Ones

Therefore, now we can borrow $1$ Tens from $10$ Tens.

So,



Therefore,



Similarly, other two subtractions will be solved and we will get - :

$1006-27=979$

and

$40000-999=39001$.