Using Simple Formulae

Use simple formulae expressed in words or symbols to calculate values (e.g. perimeter = 2 × (length + width))

Usually learned at ages 10–11

Builds on: Writing Number Sentences (helps), Order of operations

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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