# Percentages (age 9+)

Know and use the vocabulary of ratio and proportion — ratio, proportion, percentage, scale, equivalent, unequal, relative size, part-to-part, part-to-whole, and out of — and understand the difference between ratio (comparing parts to parts) and proportion (comparing a part to the whole)

Concept id: percentages-age-9. Subject: maths. Licence: CC BY-SA 4.0.

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