Question

Carry out the following multiplication in the easier way, using the properties.
(1) $48\times 5\times 2$

Answer 1

Given: $48\times 5\times 2$

Now, on multiplying a number whose unit digit is $5$ with a number whose unit digit is $2$ or any even number will always result in a number whose unit digit will be $0$.

Thus, using Associative Property,

$\Rightarrow 48\times (5\times 2)$

$=48\times 10$

$=480$

Thus, $48\times 5\times 2=480$