Multiples of a Number — Interactive Lesson (Year 5)

Are all multiples of 10 also multiples of 5? This 15-slide interactive lesson builds on times-table knowledge to find multiples of a number.

Mastering Multiples of a Number in Year 5 Maths

Pupils build on their knowledge of times tables to find the multiples of whole numbers, learning that a multiple is what you get when you multiply a number by another number. They explore the first six multiples of 7 and of 10, noticing that multiples of 10 always end in 0, then list all the multiples of 4 and 5 between 1 and 20. The lesson extends into common multiples, sorting numbers by whether they are multiples of 8 and whether they are square numbers.

What’s Included

• 15-slide interactive lesson on multiples of a number
• Learning objective on finding multiples using times-table knowledge
• Worked examples with multiples of 7 and 10
• Listing multiples in ascending order within a range
• Common multiples and square-number sorting, with instant feedback

Key Benefits for Students

• Builds a clear definition of a multiple
• Reinforces times-table recall through active use
• Introduces common multiples and square numbers alongside
• Instant feedback on answer questions

Why Teachers Love It

• No prep — ready for whole-class teaching on an interactive whiteboard
• A concise lesson that fits a single session
• Self-marking questions support independent practice
• Suits teaching, revision and homework
• A dependable foundation before factors and prime numbers

Love this? You’ll love…

• Common Multiples — Interactive Lesson (Year 5)
• Columnar Addition — Interactive Lesson (Year 5)
• Divisibility Rules — Interactive Lesson (Ages 8–10)

A dependable addition to a Year 5 number topic, giving pupils a broad introduction to multiples before narrowing in on common multiples specifically. Confident multiples work here supports fractions, ratio and simplifying later in KS2.

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FAQs

What year group is this for?
Year 5 (ages 9–10), KS2.

Does it cover square numbers too?
Yes — alongside multiples and common multiples.

Is it self-marking?
Yes, with instant feedback on the questions.