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Practise Adding Three Numbers with Decimals

In this worksheet, students will add together three numbers, some of which have decimals, using columns and lining up decimals points.

'Practise Adding Three Numbers with Decimals' worksheet

Key stage:  KS 2

Year:  Year 5 Maths worksheets

Curriculum topic:   Number: Fractions, Decimals and Percentages

Curriculum subtopic:   Solve Problems with Decimal Places

Difficulty level:  

Worksheet Overview

In this activity, we will add three decimal numbers, making sure that the decimal points are in a vertical line before carrying out an addition in columns.



Add 157.2 + 198.4 + 6



First, we need to make sure that all three numbers have the same number of decimal places so that we can line the decimal points up easily.

157.2 and 198.4 are fine because they both have one digit after the decimal point so we can line them up easily.

6 is a bit of a problem though! We have to convert 6 to 6.0 before we can add it to the calculation.


Adding decimals


So 157.2 + 198.4 + 6 = 361.6


Do you see how easy it is once we have given them all the same number of decimal places, and lined up the decimal points?


boy jumping


Let's have a go at some questions then!

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