Use the divisibility rules to find multiples of 3
I know the divisibility rule for multiples of 3 and can use it with 3- and 4-digit numbers.
Use the divisibility rules to find multiples of 3
I know the divisibility rule for multiples of 3 and can use it with 3- and 4-digit numbers.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Numbers that can be divided by 3 and leave no remainder are divisible by 3
- To find the digit sum of a number, add the digits in the number together so the digit sum of 17 is 1 + 7 which equals 8
- For a number to be divisible by three, the dgit sum of the number must be a divisible by 3
Keywords
Digit sum - The sum of the digits of a number is called its digit sum.
Divisible / Divisibility - Divisibility is when division of a number results in another whole number. A number is divisible by another if it can be shared exactly with no remainder.
Multiple - A multiple is the result of multiplying a number by another whole number.
Common misconception
Lack of understanding of key terms such as: 'digit,' 'number.'
Explain clearly the difference between the two key terms and encourage children to test the divisibility rule on both 3 digit and 4 digit numbers.
To help you plan your year 4 maths lesson on: Use the divisibility rules to find multiples of 3, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 4 maths lesson on: Use the divisibility rules to find multiples of 3, 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.
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 Relationship between the 3 and 6 times tables and tests of divisibility 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
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Exit quiz
6 Questions
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