KS1 Maths Spot the Mistake – 40 Tasks

40 KS1 maths reasoning tasks that ask pupils to spot the mistake, fix it and explain their thinking.

This ready-to-use resource provides short, focused reasoning activities across key KS1 maths areas. Each task presents an incorrect statement, representation or answer for pupils to investigate.

Pupils are prompted to:
• Spot It – identify what is wrong
• Fix It – give the correct answer or representation
• Explain It – explain how they know

Topics include:
• Number
• Addition and subtraction
• Patterns and comparison
• Measurement and fractions
• Shape and mixed reasoning

The pack includes:
• 40 reasoning tasks
• Teacher Answer & Reasoning Guide
• Editable PowerPoint version
• Print-ready PDF version
• Quick Start and How to Use guidance

Tasks can be used for whole-class discussion, small-group work, maths reasoning practice, intervention or independent work.

Files included:
• Editable PPTX
• Print-ready PDF

Suitable for KS1.