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What are decimal numbers?

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A decimal is a way of writing a number that is not whole.

Decimal numbers are 'in between' numbers. For example, 10.4 is in between the numbers 10 and 11. It is more than 10, but less than 11.

Take care when reading the values of decimal numbers.

4.2 means 4 and 2 tenths.

4.20 means 4 and 2 tenths and 0 one-hundredths. The last zero does not need to be there.

4.02 means 4 and 0 tenths and 2 one-hundredths.

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Watch: Decimals

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Play our fun maths game Guardians: Defenders of Mathematica. game

Use your times tables and more maths skills to defeat monsters and reclaim the Kingdom of Mathematica

Play our fun maths game Guardians: Defenders of Mathematica
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More on Place value

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