Mathematics — first biennium · Lesson
Properties let us rewrite a calculation without changing its value.
In this lesson: Recognize and apply commutative, associative and distributive properties and identity elements.
How to proceed: Do not look only at the result: notice what changed in the expression and what stayed invariant.
You can already assume: Operations with natural numbers.
Completed exercises: 0/5 · Correct on first attempt: 0
Do not look only at the result: notice what changed in the expression and what stayed invariant.
ConceptStep separates what is required from what is recommended or useful as reinforcement. Only required prerequisites block your progress.
Relationships: solid line = required · dashed line = recommended · dotted line = reinforcement.