Question

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

$348\times 156$

Answer 1

We want to find out the product $348\times 156$ using general rule$:$

First find nearest hundred to $348$

In $348$ the ten's digit is $4$ $,$ unchanged the hundred digit and replace ten's and unit digit by $0$

Nearest hundred to $348$ is $=$$300$

Now find nearest hundred to $156$

In $156$ the ten's digit is $5$ $,$ increase the hundred digit by $1$ and replace ten's and unit digit by $0$

Nearest hundred to $156$ is $=$$200$

Required product $=300\times 200$

$=60,000$

Hence$,$ the product $348\times 156$ is equal to $60,000$