Year 1 One Less

(7 resources)
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What's included?
Essential Year 1 resources for finding one less than a given number up to 10, a foundational KS1 Maths concept directly linked to subtraction and number order. Activities employ the CPA approach to build conceptual understanding of the inverse operation and develop varied fluency in mental calculation. This key small step is crucial for achieving national curriculum mastery in number sequence and early subtraction. The CS Maths Scheme provides structured visual and practical tasks.
Full step description and curriculum objectives
Independent Tasks
Activities that help pupils practise, apply and secure their understanding after the main teaching input.
Interventions, Support and Scaffolding
Targeted resources for pre-teaching, same-day intervention and/or extra support where needed.
Deeper Learning and Extension
Tasks that deepen understanding, promote discussion and stretch/extend pupils who are ready for greater challenge.
Resources at a glance
  • Worksheet
    Varied Fluency
    Consolidate and secure understanding of key concepts with three fluency-based questions.
  • Worksheet
    Reasoning and Problem Solving
    Promote mathematical reasoning and develop problem-solving skills with three different question types.
  • Worksheet
    Discussion Problem
    Fun and engaging open-ended questions to encourage deeper thinking and collaborative working.