Maths

Subtracting within 20

Subtract within 20 by counting back, using bonds and subtracting through ten.

MathsAge 7+25 minutes

What this topic covers

  • Subtract by counting back from the larger number.
  • Subtract through ten using bonds (13 − 5 = 13 − 3 − 2).
  • Explain that subtraction must be done in the order written.

Core concept summaries

Key ConceptsCount BackSubtract Through TenOrder Matters

Practice formats pupils may meet

NeurofiED uses varied practice to help pupils apply the idea actively, check understanding and build confidence over time.

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