Question

Find the product by suitable arrangement:

$125\times 40\times 8\times 25$

Answer 1

We can arrange the calculation in such a way that it becomes easy and quick to find the answer.

$125\times 40\times 8\times 25$

We club the product into two parts. We find the product of 125 and 8 as it gives 1000 and 40 and 25 as that gives 1000 too.

= $(125\times 8)\times (40\times 25)$

So the over product gets simplified as:
= $1000\times 1000$
= $1000000$