Key to Percents emphasizes mental computation and estimation skills—because most work with percents is done without pencil and paper. Then students are taught to solve percent problems using equal fractions and decimal multiplication. Finally, percents are used to solve word problems in a variety of applications.
Key to Percents assumes only a knowledge of fraction and decimal computation. Minimal reading is required, so students can work independently or in small groups.
- Book 1: Percent Concepts
- Book 2: Percents and Fractions
- Book 3: Percents and Decimals
- Answers and Tests available separately
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