Ch 3_Student_Edition.pdf - Algebraic Expressions and...

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Algebraic Expressionsand Properties3.1Algebraic Expressions3.2Writing Expressions3.2Writing Expressions3.3Properties of Addition and Multiplication3.3Properties of Addition and Multiplication3.4The Distributive Property3.4The Distributive Property5643211012864215181296320 2416128425 30201510530 3624181261234565643215643211012864215181296320 2416128425 30201510530 362418126123456564321“Did you know that 5365635,but 546Þ645?”“Only certain operations like additionand multiplication preserve equalitywhen you switch the numbers around.”“Descartes, evaluate this expressionwhenx52 to determine the number ofcat treats you are going to eat today.”“Remember that you evaluate analgebraic expression by substitutingthe value ofxinto the expression.”3.1Algeb3.1Algeb3lb3.1Algeb3
Interpreting NumericalExpressionsExample 1Write a sentence interpreting the expression 3×(19,762+418).i3(19 762418)x01244 +x56“Great! You’re up tox= 2.Let’s keep going.”What YouLearned Before
Example 2Write a sentence interpreting the expression (316+43,449)+5.
Example 3Write a sentence interpreting the expression (20,008752)÷(20,008752)÷2 is half as large as 20,008752.Write a sentence interpreting the expression.2.+4086)+100+564)÷33441220÷537324

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Term
Spring
Professor
Jones
Tags
Algebraic Expressions, Algebraic Expressions and Properties