Round off numbers

 1.6 Round off numbers

Rounding off means a number is made simpler by keeping its value intact but closer to the next number

Round the number to the nearest thousands.

Example:

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

 7 3 2 6 Thousands Hundreds Tens Ones

Step 2: Identify the number for 'hundreds'.

 0 1 2 3 4
 5 6 7 8 9
Weak Numbers Strong Numbers

Digits in the 'thousands' place value  Digits in the 'thousands' place value

\begin{aligned} &\color{red}{7}\;3\;2\;6\quad\Longrightarrow\quad\;\color{red}{7}\;3\;2\;6 \\&\small{+0} \end{aligned}

 3 is in 'weak numbers', so the number in the thousands place must add 0.

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

$$7\;\color{red}{3}\;\color{red}{2}\;\color{red}{6}\quad\Longrightarrow\quad7\;\color{red}{0}\;\color{red}{0}\;\color{red}{0}$$

So, 7326 rounded to the nearest thousands is 7000.

Round off numbers

 1.6 Round off numbers

Rounding off means a number is made simpler by keeping its value intact but closer to the next number

Round the number to the nearest thousands.

Example:

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

 7 3 2 6 Thousands Hundreds Tens Ones

Step 2: Identify the number for 'hundreds'.

 0 1 2 3 4
 5 6 7 8 9
Weak Numbers Strong Numbers

Digits in the 'thousands' place value  Digits in the 'thousands' place value

\begin{aligned} &\color{red}{7}\;3\;2\;6\quad\Longrightarrow\quad\;\color{red}{7}\;3\;2\;6 \\&\small{+0} \end{aligned}
$$7\;\color{red}{3}\;\color{red}{2}\;\color{red}{6}\quad\Longrightarrow\quad7\;\color{red}{0}\;\color{red}{0}\;\color{red}{0}$$