# Factor Pairs & Commutativity

Recognise and use factor pairs and commutativity in mental calculations

Builds on: All times tables to 12×12 (hard, https://ai.page/c/all-times-tables-to-12-12/en.md), Properties of Operations (soft, https://ai.page/c/properties-of-operations/en.md)

Concept id: factor-pairs-and-commutativity. Subject: maths. Licence: CC BY-SA 4.0.

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