Factor Pairs & Commutativity

Recognise and use factor pairs and commutativity in mental calculations

Usually learned at ages 8–9

Builds on: All times tables to 12×12, Properties of Operations (helps)

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On the map from: Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy