# England Y3 Number add sub three digits

addition, subtraction, three digit numbers; calculate, explain.

System: England National Curriculum: Mathematics
Route: /math/standards/uk-england-nc/curratom-england-nc-y3-number-addition-and-subtraction-add-subtract-mentally-formal-written-methods-up
Skills: 2

## Skills and Examples

- [Add Sub Within 1000 Algorithm](/math/skills/nbt/add-sub-within-1000-algorithm) — Whole-Number Operations and Fact Fluency
- [Multi Digit Add Sub Fluent](/math/skills/nbt/multi-digit-add-sub-fluent) — Whole-Number Operations and Fact Fluency