77thth Grade Pre-Algebra Grade Pre-AlgebraChapter 1-2Chapter 1-2

Terms and Concepts (A)Terms and Concepts (A)

Order of operations: the proper method of Order of operations: the proper method of solving a complex numerical or algebraic solving a complex numerical or algebraic expressionexpression 1. Parentheses, brackets1. Parentheses, brackets 2. multiplication/division from left to right2. multiplication/division from left to right 3. addition/subtraction from left to right3. addition/subtraction from left to right

Terms and Concepts (B)Terms and Concepts (B)

Property: certain statements that are true for Property: certain statements that are true for any numberany numberProperties of equalityProperties of equality Substitution: If a = b, then a may be replaced Substitution: If a = b, then a may be replaced

by bby b Reflexive: a = aReflexive: a = a Symmetric: if a = b, then b = aSymmetric: if a = b, then b = a Transitive: if a = b and b = c, then a = cTransitive: if a = b and b = c, then a = c

Terms and Concepts (C)Terms and Concepts (C)

Additive Identity property: for any number Additive Identity property: for any number a, a + 0 = 0 + a = aa, a + 0 = 0 + a = aMultiplicative Identity property: for any Multiplicative Identity property: for any number a, a * 1 = 1 * a = anumber a, a * 1 = 1 * a = aMultiplicative Property of 0: for any Multiplicative Property of 0: for any number a, a * 0 = 0 * a = 0number a, a * 0 = 0 * a = 0Evaluating: applying the properties of Evaluating: applying the properties of numbers and arithmetic operations to find numbers and arithmetic operations to find the value of an algebraic expressionthe value of an algebraic expression

Class assignmentClass assignment

Work the examples on pages 8-10Work the examples on pages 8-10 Problems 1-8Problems 1-8

Work on pages 11-12Work on pages 11-12 Problems 4-18Problems 4-18 Problems 20-48 (evens)Problems 20-48 (evens)

Homework AssignmentHomework Assignment

Do page 2 questions 1-20 (all) from the Do page 2 questions 1-20 (all) from the practice workbook.practice workbook.