2-3 - Writing Algebraic Expressions Lesson 2-3 Word phrases...

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Writing Algebraic Expressions Lesson 2-3
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Word phrases can be written as algebraic expressions. Use the words to determine what operation you are using. Use a variable for the phrase “a number.”
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Adding Phrases Plus More than Sum Increased by
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Subtracting Phrases Minus Difference Subtracted from Decreased by Less than
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Multiplying Phrases Times Product of Dividing Phrases Quotient Divided by
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Example: 7 decreased by b “Decreased by” means subtract. 7 - b
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Example: The product of 19 and k “Product” means multiply. We show multiplication by placing the factor right next to the variable. 19k
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Less than, more than Some word phrases contain the words “less than” or “more than.” When you see those words, start with the second part of the phrase. Example: 23 less than m m - 23
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The 32 is less than the 5 times c, which means we subtract 32 from the 5 times c. So, start with 5 times c. 5c - 32
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This note was uploaded on 11/17/2011 for the course MATH 110 taught by Professor Staff during the Fall '08 term at BYU.

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2-3 - Writing Algebraic Expressions Lesson 2-3 Word phrases...

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