Question

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

Answer 1

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

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

$=(125\times 8)\times (4\times 10\times 25)$

$=(125\times 8)\times (4\times 250)$

$=1000\times 1000$

$=10,00,000$