Maths
Adding & Subtracting Hundreds Mentally
Add and subtract a three-digit number and hundreds mentally.
MathsAge 9+25 minutes
What this topic covers
- Add hundreds to a three-digit number mentally.
- Subtract hundreds from a three-digit number mentally.
- Cross 1000 when adding hundreds and use related facts (3 + 4 → 300 + 400).
Core concept summaries
Key ConceptsA Crate at a TimeHundreds FactsDo Not Touch the Tens or Ones
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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