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Year 1 · maths · National Curriculum

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Knowledge Organiser — Year 1 Maths: Addition and Subtraction within 20

Learning objectives

  • Use + − = signs
  • Know number bonds to 20

Key knowledge

  • Number bonds: 7 + 3 = 10, so 17 + 3 = 20
  • Subtraction is the inverse of addition
  • Missing numbers: 8 + □ = 15 gives 7

Key vocabulary: Missing, Subtraction, addition, inverse, numbers

Source: UK Curriculum Pack · 01_Primary_Y1-6/Year_01/Maths/Units/02_Addition_and_Subtraction_within_20/Knowledge_Organiser.md

Contains public sector information licensed under the Open Government Licence v3.0. Lessons and quizzes are original content written for Turing Education.