Adding And Subtracting 10s — Interactive Lesson (Year 3)

Build Fast, Accurate Mental Maths Skills! Develop Year 3 students’ number sense by practising quick mental addition and subtraction of multiples of 10.

Whats inside

• Interactive lesson slides using place value charts (hundreds, tens, ones) to show what changes when adding/subtracting 10s
• Guided practice: complete-the-sentence place value exercises
• Real-world word problems (e.g. bags of sweets, cups of pencils)
• Built-in quiz with instant feedback

Why it works

• Builds the core insight that only the tens column changes, not hundreds or ones
• Curriculum-aligned to Year 3 place value and mental maths objectives
• Digital format for whole-class, guided group, or independent practice

Designed for ages 7-8 (UK Year 3).