Composition of 100 in 50s, 25s and 20s
I can compose 100 in 50s, 25s and 20s.
Composition of 100 in 50s, 25s and 20s
I can compose 100 in 50s, 25s and 20s.
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Lesson details
Key learning points
- 100 can be divided into equal parts
- There are two 50s in 100
- There are four 25s in 100
- There are five 20s in 100
Keywords
Compose - You can compose larger numbers from smaller numbers.
Decompose - You can decompose whole numbers into smaller numbers.
Common misconception
Pupils may believe only multiples of 10 can compose 100 and therefore do not see four groups of 25.
Focus on practical representations e.g. bead strings and base 10 blocks where 100 can be composed and decomposed.
To help you plan your year 3 maths lesson on: Composition of 100 in 50s, 25s and 20s, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 3 maths lesson on: Composition of 100 in 50s, 25s and 20s, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 2 maths lessons from the Securing place value to 100 and applying to addition and subtraction unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
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Starter quiz
6 Questions
80
30
100
70
50
Exit quiz
6 Questions
