Mathematics — first biennium · Lesson
A number can belong to several sets. Here we look for the smallest set that contains it.
In this lesson: Classify a number in the smallest of N, Z and Q and understand inclusions between sets.
How to proceed: Ask first whether the number is natural; if not, check whether it is an integer; only then move to rational numbers.
You can already assume: Integers, fractions and number sets.
Completed exercises: 0/5 · Correct on first attempt: 0
Ask first whether the number is natural; if not, check whether it is an integer; only then move to rational numbers.
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.