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      CCSS.Math.Content.6.RP.A.3
      Use ratio and rate reasoning to solve real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
      CCSS.Math.Content.6.RP.A
      Understand ratio concepts and use ratio reasoning to solve problems.
      Ratios and Proportional Relationships
      Common Core State Standards (CCSS) Initiative: Mathematics Standards

      CCSS.Math.Content.6.RP.A.3b Solve unit rate problems including those involving unit pricing and constant speed.

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