Question

Multiply with suitable rearrangements:

$6\times 18\times 250$

Answer 1

For solving this problem,

We will take $18=(20-2)$

and $250=200+50$

Then after rearrangement,

$6\times (20-2)\times (200+50)$

$=(120-12)\times (200+50)$ (Using distributive property)

$$\begin{gathered} =108\times (200+50) \\ =108\times 200+108\times 50 \end{gathered}$$ (Using distributive property)

$=21600+5400$

$=27000$.

Hence, the value of $6\times 18\times 250$ is $27000$.