Question

The distance between Shreya's house and Neha's house is $12.6\mathrm{km}$. Find the distance rounded off to its nearest tens.

Answer 1

Distance between Shreya's house and Neha's house $=12.6\mathrm{km}$

We need to round off this distance to its nearest tens.

To round off a number to nearest tens, following are the steps;

1. Identify the digit at ones place.
2. If the ones digit is $5$ or more, then add $1$ to the tens digit.
3. If the ones digit is less than $5$, then leave the tens digit as it is.

Here, ones digit is $2$, so tens digits remains as it is.

Hence, Distance between Shreya's house and Neha's house rounded off to nearest tens will be $10\mathrm{km}$.