Question

Find the product by suitable rearrangement: $125\times 40\times 8\times 25$

Answer 1

State the data and simplify using rearrangement:

The given expression is $125\times 40\times 8\times 25$.

Then, the required product is,

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

$\Rightarrow 125\times 40\times 8\times 25=\left(125\times 8\right)\times \left(40\times 25\right)$

$\Rightarrow 125\times 40\times 8\times 25=1000\times 1000$

$\Rightarrow 125\times 40\times 8\times 25=1000000$

Hence, the value of $125\times 40\times 8\times 25$ is $1000000$.