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Writing Algebraic Expressions

Writing Algebraic Expressions. More than Greater than Added to Sum Increased by. Fewer than Less than Subtracted from Difference Decreased by. Addition Subtraction. Multiplied Product Times Twice / double (times 2) Half (times ½) . Divide Quotient. Multiplication Division.

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Writing Algebraic Expressions

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  1. Writing Algebraic Expressions

  2. More than Greater than Added to Sum Increased by Fewer than Less than Subtracted from Difference Decreased by Addition Subtraction

  3. Multiplied Product Times Twice / double (times 2) Half (times ½) Divide Quotient Multiplication Division

  4. Write the expression for each • Four times x 4x • Twelve less than y y – 12 • Three more than x 3 + x • 14 decreased by a number 14 – x 5) Six increased by three times x 6 + 3x • The value in cents of 6 nickels 6(5)

  5. 6 more than x: y added to z: 7 less than z: 11 greater than y: 3 times b: Sum of 3 and x: x divided by 3: t subtracted from q: 6 + x y + z z – 7 11 + y 3b 3 + x x / 3 or q - t Practice on your own:

  6. Numerical vs. Variable Expression • A variable is a letter that stands for a number • A variable expression is any expression that has a variable in it.

  7. Examples • You go to Great America with x dollars. You buy 2 drinks and each drink costs $3.00. Write an expression for how much money you have left? • x – 2(3.00) = x – 6 dollars

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