Course 1, Lesson 8, Perimeter

Course 1, Lesson 8, Perimeter

Author: Hector Soto

1. Attend to precision. 2. Write and evaluate mathematical expressions that correspond to given situations. 3. Write expressions that record operations with numbers and with letters standing for numbers. For example, express the calculation Subtract y from 5 as 5 - y. 4. Apply the Commutative, Associative, and Distributive Properties to show that two expressions are equivalent.

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Source: Hector Soto