Question

Find the following product

$4.89\times 10$

Answer 1

Find the product

The place value after the decimal represents the fractional part of the number.
So, we can write $4.89=\frac{489}{100}$

Now,

$$\begin{gathered} 4.89\times 10 \\ =\frac{489}{100}\times 10 \\ =\frac{489}{10} \\ =48.9 \end{gathered}$$

Hence, the correct answer is $48.9$.