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Mathematics·Addition & Subtraction·procedural

Number bonds

Recall number bonds (addition and related subtraction facts) within 20

Suggested ages 5–6

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Learning journey

Your child is building a strong foundation in addition and subtraction, learning to combine and separate numbers up to 20 using objects, drawings, and mental strategies.

Evidence of understanding

  • Quickly recall that 8 + 5 = 13
  • Given 13 – 5, respond 8 using knowledge of related addition fact
  • Know all pairs of single-digit numbers that sum to numbers up to 20

Assessment prompt

Can Number bonds quickly recall facts like '8 + 7 = 15' and immediately know that '15 − 7 = 8' — without having to work out the subtraction from scratch?

Standards alignment

Maths/Y1/AS/2GB · uk-nc-2013

Number bonds and subtraction facts within 20

The national curriculum in England: Key stages 1 and 2 framework document · Key Stage 1