Question

Estimate the products : $79x192$

Answer 1

Step 1. Rounding off the numbers to the nearest hundred.

• As $79$ lies between $70$ and $80$

Since $79$ is nearest to $80$ than to $70$.

Therefore $79$ rounded off to the nearest tens as $80$.

• Also $192$ lies between $100$ and $200$

Since $192$ is nearest to $200$ than to $100$.

Therefore $192$ rounded off to the nearest hundred as $200$.

Step 2.Find products

$80x200=16000$

Hence the product by rounding off the number $79x192$ is $16000$.