How to Round Off Numbers to Whole or Decimal Places, Theory, Explanations, Examples. Special Cases

How to round off numbers?

Table of content:

1. Rounding off numbers: definition.

2. How to round off a number to whole places?

Example 1: round off the number 163.87 to the nearest ten.

Example 2: round off the number 169.87 to the nearest ten.

3. How to round off a number to decimal places?

Example 1: round off the number 163.945 to the nearest tenth.

Example 2: round off the number 163.965 to the nearest tenth.

4. Mathematical explanation of the rules used in numbers rounding.

5. Special cases. Examples.