Use known facts to add and subtract to and from multiples of 100
I can add to and subtract from multiples of 100.
Use known facts to add and subtract to and from multiples of 100
I can add to and subtract from multiples of 100.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- When you add a one-digit number and a multiple of 100, only the 1s digit changes.
- When you subtract a one-digit number from a multiple of 100, the 100s, 10s and 1s digits change.
- When you add a 10s number and a multiple of 100, only the 10s digit changes.
- When you subtract a 10s number from a multiple of 100, the 100s and 10s digits change.
Keywords
Multiple - A multiple is the result of multiplying a number by another whole number.
Common misconception
Pupils may need help using number pairs that total 10 to support their thinking in this lesson.
Make explicit connections between number pairs that total ten and the learning (e.g. 10 - 3 = 7 so 100 - 7 = 93 and 100 - 30 = 70).
To help you plan your year 3 maths lesson on: Use known facts to add and subtract to and from multiples of 100, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 3 maths lesson on: Use known facts to add and subtract to and from multiples of 100, 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.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Representing 3-digit numbers, comparing and positioning on number lines 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
Exit quiz
6 Questions
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