Columnar Addition — Interactive Lesson (Year 5)

Which column do you add first? This 23-slide interactive lesson teaches columnar addition, building fluency with numbers exceeding four digits.

Mastering Columnar Addition in Year 5 Maths

Pupils are introduced to columnar addition with numbers exceeding four digits, solve addition problems using the columnar method, add multiple large numbers together, and add large numbers with regrouping. They learn that numbers must be lined up by place value before adding from the right-hand column, working through examples such as 9,623 + 145 and calculations that require an exchange, such as 4,268 + 3,945. Questions also check understanding of which column is affected when an exchange is needed.

What’s Included

• 23-slide interactive lesson on columnar addition
• Learning objectives on the column method and regrouping
• Worked examples with numbers exceeding four digits
• Questions on which digit and column to start with
• Fill-in-the-blank and multiple-choice questions with instant feedback

Key Benefits for Students

• Builds a reliable method for adding large numbers
• Explains why place value alignment matters
• Practises regrouping across several columns
• Instant feedback on answer questions

Why Teachers Love It

• No prep — ready for whole-class teaching on an interactive whiteboard
• A structured lesson that can be split across sessions
• Self-marking questions support independent practice
• Suits teaching, revision and homework
• A dependable foundation before columnar subtraction

Love this? You’ll love…

• Divisibility Rules — Interactive Lesson (Ages 8–10)
• Negative Numbers — Interactive Lesson & Activities (Ages 9–11)
• Ordering and Comparing Decimals — Interactive Lesson (Ages 9–11)

A dependable addition to a Year 5 number topic, giving pupils a secure, reusable method for adding large numbers accurately. Fluent columnar addition supports measurement, money and multi-step word problems.

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FAQs

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

Does it cover regrouping?
Yes — including calculations that need more than one exchange.

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