Question

What is the value of $46-64$?

• A. $16$
• B. $-16$
• C. $18$
• D. $-18$

Answer 1

The correct option is D $-18$

$46-64$ can also be written as $-(64-46)$ as $64>46$.

Now, we need to find the value of $64-46$ and add a negative sign to the evaluated value.

This can be shown as:


Taking carry from $6$ to add it to $4$ so that we can subtract $6$ from $14$.



Now, subtracting $6$ from $14$ and $4$ from $5$.

We get the value of $64-46$ as $18$.

But we need to find the value of $46-64$. For this we need to add a negative sign to the value of $64-46$.

$\therefore 46-64=-(64-46)=-18$

Hence, the value of $46-64$ is $-18$, i.e., option (d.) is the correct one.