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Year 1 Spring Block 1

Spring Block 1: Addition and Subtraction Within 20 Lesson Packs

Support your pupils as they develop secure addition and subtraction strategies within 20 with this Year 1 addition and subtraction unit for Spring Block 1. Fully aligned with the White Rose Maths progression, the block helps children build fluency with number bonds, counting on, and related facts.

Pupils begin by adding through practical counting strategies before moving on to making and using number bonds, including making 10. They then explore subtraction both with and without crossing 10, supported by clear visual representations and structured reasoning.

Each lesson pack includes planning, interactive slides, practical activities and differentiated worksheets, giving you a complete teaching sequence for Spring Term and high-quality Year 1 addition and subtraction worksheets linked directly to the small steps.

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View Small Steps and Curriculum Objectives

Week 1

  • Add by counting on
  • Add by counting on (practical contexts)
  • Number bonds within 10 and 20
  • Find and make number bonds
  • Add using number bonds

Week 2

  • Add by making 10
  • Add by making 10 (part-part-whole models)
  • Subtraction – not crossing 10
  • Subtraction – not crossing 10 (word problems)

Week 3

  • Subtraction – crossing 10 (1)
  • Subtraction – crossing 10 (2)
  • Related facts (addition and subtraction)

Week 4

  • Compare number sentences
  • Use symbols to compare calculations
  • Reasoning and problem-solving within 20

National Curriculum Objectives

  • Represent and use number bonds and related subtraction facts within 20
  • Add and subtract one-digit and two-digit numbers to 20, including zero
  • Solve one-step problems involving addition and subtraction, using concrete objects and pictorial representations

Year 1 addition and subtraction worksheets and lesson planning

Teach addition and subtraction with confidence using this complete Year 1 addition and subtraction within 20 unit for Spring Block 1. Fully aligned with the White Rose Maths small steps and the Year 1 National Curriculum, the unit supports pupils as they build fluency with number bonds, counting strategies and early mental methods.

Children begin by adding through counting on and practical representations before moving on to making 10 and using known facts to solve calculations efficiently. Subtraction is then introduced carefully, with structured support for both crossing and not crossing 10.

Subtraction, related facts and reasoning within 20

Later in the block, pupils explore subtraction as finding the difference and taking away, supported by visual models and clear progression. The unit also includes related facts and comparison tasks to help children understand the connections between addition and subtraction.

What’s included in each lesson pack?

  • Differentiated Year 1 addition and subtraction worksheets
  • Clear lesson PowerPoints for modelling and guided practice
  • Practical activities for counting on, number bonds and subtraction
  • Planning and guidance aligned with the White Rose small steps
  • Reasoning and discussion prompts to support mathematical talk

Whether you’re looking for number bond activities, subtraction within 20 worksheets or a full Spring term teaching sequence, this unit provides a structured and supportive approach to addition and subtraction in Year 1.

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