Question

What should be added to $54$ to obtain $68$ ?

• A. $24$
• B. $12$
• C. $54$
• D. $14$

Answer 1

The correct option is D $14$

We need to find a number that should be added to 54 so that the sum equals 68.
$\Rightarrow ?+54=68$
Here, to find the unknown number, we need to deduct 54 from 68.

Aligning both the numbers according to Place value (starting from the right) :

Placing the like terms of the digits together i.e. digits at ones place will be placed together and digits at tens place to be placed together.


By subtracting 4 ones from 8 ones, we get 4 ones.

Similarly, by subtracting 5 tens from 6 tens, we get 1 tens.


Thus, the answer is $14$.