When the membership in a chess club changes, it is your mathematicians' job to find out how many boys and girls are attending and the percent change from last year. The activity provides a great compound problem finding the different percent change in different steps. 

Concepts

percent change, percents, percent decrease, percent increase, proportions

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Additional Tags

proportions, percent decrease, percent change, percent increase, math

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Pros

• Multi-step problem
• Detailed solutions

Cons

• No examples given
• Needs prior knowledge of finding percent change

Common Core

7.RP.A.3 MP4