Compare and order decimal numbers with hundredths

I can compare and order decimal numbers with hundredths.

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Year 5

Compare and order decimal numbers with hundredths

I can compare and order decimal numbers with hundredths.

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Share activities with pupils

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Lesson details

Key learning points

To compare two numbers, you compare digits with the same place value, starting with the largest place-value digit
If the whole numbers and tenths are the same, look at the value of the hundredths digit to compare and order

Common misconception

A number with more digits after the decimal point is greater than a number with fewer digits.

Create the numbers using place value counters or base 10 blocks and re-iterate the magnitude of each digit within the number.

Keywords

Compare - When you compare, you look for similarities and differences in an object or value.
Place value - The value of a digit in a number based on where it is placed.
Order - Putting numbers or objects in position based on a set rule.
Ascending - When items are arranged from smallest to largest.
Descending - When items are arranged from largest to smallest.

Encourage pupils to avoid comparing number procedurally and always consider the size of each number through their reasoning. Converting the decimal digits to hundredths can also avoid procedurally comparing column after column.

Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).