Round the number to the nearest hundreds.

Example:

Step1: Underline the number in the 'hundreds' place value.

Step 2: Identify the number for 'tens'.

Digits in the 'hundreds' place value   Digits in the 'hundreds' place value

add 0                                                   add 1

\(\begin{aligned} &\color{red}{3}\;2\;6\quad\Longrightarrow\quad\;\color{red}{3}\;2\;6 \\&\small{+0} \end{aligned}\)     

Step 3: Change the number in the 'tens' and 'ones' place value to zero.

\(3\;\color{red}{2}\;\color{red}{6}\quad\Longrightarrow\quad3\;\color{red}{0}\;\color{red}{0}\)

So, 326 rounded to the nearest hundreds is 300.