Question

Estimate the products : $28x67$

Answer 1

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

• As $28$ lies between $20$ and $30$

Since $28$ is nearest to $30$ than to $20$.

Therefore $28$ rounded off to the nearest tens as $30$.

• Also $67$ lies between $60$ and $70$

Since $67$ is nearest to $70$ than to $60$.

Therefore $67$ rounded off to the nearest tens as $70$.

Step 2.Find products

$30x70=2100$

Hence the product by rounding off the number $28x67$ is $2100$.