Partition two-digit numbers into tens and ones using place value resources

I can partition two-digit numbers into tens and ones using place value resources and represent this on part-part-whole models and bar models.

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Year 2

Partition two-digit numbers into tens and ones using place value resources

I can partition two-digit numbers into tens and ones using place value resources and represent this on part-part-whole models and bar models.

Download all resources

Share activities with pupils

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Lesson details

Key learning points

Two-digit numbers can be partitioned into tens and ones.
The order of the digits tells us their value.
We can use a Gattegno chart or a place value chart to help us remember what the digits on a two-digit number represent.

Keywords

Partition - To split a whole up into parts.
Combine - To put parts together to make a whole.
Parts - A piece or section of a whole.
Whole - All of something; complete.

Common misconception

Children may not understand the importance of the order of the tens and ones digits in indicating the value of each part of a two-digit number.

Use place value charts, place value arrows and Gattegno charts to reinforce the value of each digit.

The structure of two-digit numbers is examined to prepare for later calculations in the form 30 + 4 or 34 - . When using practical equipment on models, it is important not show the whole and parts together as it would represent double the intended amount. Note, bar models are not to scale.

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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).