Translating Between Verbal Phrases and Expressions

OperationKeywords Addition Subtraction Multiplication Division Brainstorming Activity

Strategy For Translating Verbal Phrases Into Expressions: * Identify the operation. * Identify what is known. – that is the constant. * Identify what is unknown – that is the variable. * Write the expression. Tip: For subtraction and division problems, follow the order of the phrase except for “3 less than a number” which is x – 3 NOT 3 – x. The order for addition and multiplication doesn’t matter. Translating Between Verbal Phrases and Expressions

OperationAdditionSubtractionMultiplicationDivision Numerical expression – 128 x 48 or 8  48 or 8(48) or 48(8) or (8)(48) 327 ÷ 3 or Words Algebraic Expression x + 28k – 128  w or 8(w) or 8w n ÷ 3 or n 3 Words Ways to Write Mathematical Expressions

PhraseExpression The quotient of a number and 7. Three more than z. The product of x and 12. Twelve less than b. Guided Practice Translating Between Verbal Phrases and Expressions

PhraseExpression The sum of x and 15. Twelve divided by f. 75 minus a number. Three more than 13 times a number. Try these. Translate the following phrases into expressions. Translating Between Verbal Phrases and Expressions

ExpressionPhrase a ÷ b 33 + x y - 33 g  16 Translating Between Verbal Phrases and Expressions Try these. Translate the following expressions into phrases.

Real-Life Application The Nile River is the world’s longest river. Let n represent the length in miles of the Nile River. The Amazon River is 4,000 miles long. Write an expression that represents how much longer the Nile is than the Amazon. Translating Between Verbal Phrases and Expressions