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Percentage and Proportion Vocabulary: Definitions and Examples

Learn key terms such as percent proportion, percent change, percent of increase, and percent of decrease, including how to solve proportions using cross multiplication. Practice on a ghost worksheet with step-by-step instructions.

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Percentage and Proportion Vocabulary: Definitions and Examples

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  1. Chapter 2 Vocabulary Please pick up: 5 cards vocabulary cards

  2. Vocabulary Terms: percent proportion percent of change percent of increase percent of decrease percent error

  3. percent proportion – One ratio or fraction that compares part of a quantity to the whole quantity. The other ratio is the equivalent percent written as a fraction with a denominator of 100. Percent proportion: part = % whole 100 percent of change – A ratio that compares the change in a quantity to the original amount. Percent of change = amount of change original amount

  4. percent of increase – A positive percent of change. • percent decrease – A negative percent of change. • percent error - A ratio that compares the inaccuracy of an estimate to the actual amount.

  5. Solving proportions using cross multiplication Ghost worksheet Take out a piece of lined paper please.

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