Unit 7, Lesson 13: Adding and Subtracting to Solve Problems

Unit 7, Lesson 13: Adding and Subtracting to Solve Problems. Lesson Goals. Use addition and subtraction of rational numbers to solve problems in context. Required Materials. 13.1: Positive or Negative? (5 minutes) Setup: Students in groups of 2. 30 seconds of quiet think time, then signal when they have an answer and a strategy for the first ... ................
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