inverse proportion   4 videos

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  Solving Ratios and Proportions

  Pre-Algebra Fractions and MIxed Numbers

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  Multiplicative and Addative Inverses

  Pre-Algebra Properties of Numbers

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  Calculating Percents

  Pre-Algebra Decimals and Percents

  Solving percent problems using proportions

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  Similar Triangles

  Pre-Algebra Introductory Geometry

  Overview of similarity: congruent angles, proportional corresponding sides