  # Round a Decimal Number to the Nearest Whole Number

In this worksheet, students will round decimal numbers to the nearest whole number. Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Round/Approximate Numbers Appropriately

Popular topics:   Numbers worksheets

Difficulty level:   #### Worksheet Overview

In this activity, we will learn how to round a decimal number to the nearest whole number.

Method

To round a decimal to the nearest whole number, check the digit in the tenths column.

If the tenths digit is 5 or more, round up.

If the tenths digit is 4 or less, round down.

Examples

19.742 is between the whole numbers 19 and 20.

The 7 tenths tells us to round up to 20.

19.742 rounds up to 20.

19.342 is between the whole numbers 19 and 20.

The 3 tenths tells us to round down to 19.

19.342 rounds down to 19.

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