##### This *Lesson 10: Integer Addition and Subtraction (for the TI-73 only)* lesson plan also includes:

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Using a number line on the floor made from masking tape and manipulatives, learners observe a demonstration of the addition and subtraction processes. After completing several worksheets, they solve three-term problems using calculators and number lines. This is a richly-detailed lesson plan that comes with student handouts.

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