Question

Estimate each of the following products using the general rule $:$

$5281\times 3491$

Answer 1

We want to find out the product $5281\times 3491$ using general rule

First write $5281$ to the nearest thousand

In $5281$ the hundred digit is $2,$ less than $5$ unchanged the thousand digit and replace the hundred$,$ ten's and unit digit by $0$

Nearest to thousand to $5281$ is $=5000$

In $3491$ the hundred digit is $4,$ less than $5$ unchanged the thousand digit and replace the hundred$,$ ten's and unit digit by $0$

Nearest to thousand to $3491$ is $=3000$

Required product $=5000\times 3000$

$=15\times {10}^6$

Hence$,$ the product of $5281\times 3491$ nearest to thousand is $1,50,00,000$