Preview (5 of 12 cards)
What are natural numbers?
Counting numbers starting from 1: 1, 2, 3, 4...
What are whole numbers?
Natural numbers including zero: 0, 1, 2, 3...
What are integers?
All positive numbers, negative numbers, and zero
What are rational numbers?
Numbers that can be written as p/q where q ≠ 0
What are irrational numbers?
Numbers that cannot be written as p/q, e.g. √2, π
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