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Round Decimals to One Decimal Place

In this worksheet, students will be asked to round decimal numbers with two decimal places, to one decimal place.

'Round Decimals to One Decimal Place' worksheet

Key stage:  KS 2

Year:  Year 5 Maths worksheets

Curriculum topic:   Number: Fractions, Decimals and Percentages

Curriculum subtopic:   Round Up/Down Decimals

Popular topics:   Rounding worksheets, Estimation worksheets

Difficulty level:  

Worksheet Overview

Remember, numbers with 2 decimal places have 2 digits after the decimal point.


Rounding Rules:

To round a number with 2 decimal places, look at the second digit after the decimal point.

Numbers whose 2nd decimal place is 0, 1, 2, 3, 4, round DOWN.

Numbers whose 2nd decimal place is 5, 6, 7, 8, 9, round UP.

Halfway numbers such as 7.55 round UP.


Example 1:

Round 6.46 to one decimal place.

First, look at the digit 6 = 6 hundredths. Because it is more than 5, so more than 5 hundredths, we need to round up.

Answer = 6.5


Example 2:


Round 12.83 to one decimal place.

Look at the digit 3 = 3 hundredths. Because it is less than 5, so less than 5 hundredths, we round down.

Answer = 12.8


It's that simple!

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