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Selected topic Adding and subtracting Mathematics · Addition & Subtraction · view full details
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Mathematics·Addition & Subtraction·procedural

Adding and subtracting

Add and subtract one-digit and two-digit numbers to 20, including zero

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

  • Calculate 14 + 5 = 19
  • Calculate 17 – 3 = 14
  • Add or subtract 0 and explain the result stays the same

Assessment prompt

Can Adding and subtracting work out sums like '14 + 5' or '18 − 6' in their head or on paper, and do they know that adding or taking away zero leaves the number unchanged?

Standards alignment

Maths/Y1/AS/3GB · uk-nc-2013

Add and subtract within 20

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