Instructional Activity# Example 1: Any Order, Any Grouping Property with Addition

Lesson 1. Unit 3. Grade 7 EngageNY

EngageNY10 min(s)

This Instructional Activity is a part of the Lesson 1, Unit 3, Grade 7. The given example examines how and why we combine numbers and other like terms in expressions. An expression that is written as sums (and/or differences) of products whose factors are numbers, variables, or variables raised to whole number powers is said to be in expanded form. A single number, variable, or a single product of numbers and/or variables is also considered to be in expanded form.