Question

Find the product of $8\times 391\times 125$ by suitable rearrangements.

Answer 1

$\Rightarrow 8\times 391\times 125$ can be further written as follows

$$\begin{gathered} \Rightarrow 391\times 8\times 125 \\ \Rightarrow 391\times 1000 \\ \Rightarrow 391000 \end{gathered}$$

Hence $391000$ will be the product.