Unit 2, Lesson 1# Multiplication and Division of Whole Numbers: Lesson 1 (Writing and Interpreting Numerical Expressions)

Match Fishtank 50 min(s)

In this lesson, students will evaluate numerical expressions involving addition, subtraction, multiplication, division, and grouping symbols. Understand that an expression is a mathematical phrase that contains operators, numbers, and/or letters that represent unknowns, and distinguish it from an equation, which is two expressions that are equal to one another. Understand that grouping symbols are used as a way to indicate when an operation should be performed out of its usual order.