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Algebraic Expressions Introduction

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Algebraic Expressions Introduction

Read each question carefully. Use the variable shown when writing an expression.

Expressions and Equations

An expression has numbers, variables, and operations. An equation states that two quantities are equal.

1.Select every expression (not an equation).
  • 4a + 9
  • m - 6 = 11
  • 12 ÷ p
  • 3 + 2r = 15
  • 8 - t
2.Which statement best explains how an equation differs from an expression?
  • An equation includes an equals sign; an expression does not.
  • An expression always contains a letter; an equation never does.
  • An equation must use multiplication.
  • An expression always has two numbers.
3.Choose the expression from these two choices: A) 7k + 2 = 23 B) 5k + 2

Parts of Expressions

Identify the letters, numbers, and operation signs in each expression.

4.For the expression 6a + 9 - 2b, list the variables, the coefficients, the constant, and the operation signs.
5.In the expression 8q + 5, what is the role of 8?
  • Variable
  • Number multiplying a variable
  • Constant
  • Operation
6.Match each algebra term with the example that shows it.
  • Variable
  • Coefficient
  • Constant
  • Operation
  • 7 in 7s + 2
  • r in 4r - 3
  • 6 in 2t + 6
  • the subtraction sign in 9u - 5

Write Expressions

Translate each phrase into an expression. Do not solve for the variable.

7.Write an expression for 7 more than the number x.
8.Write an expression for 4 times the number y.
9.Write an expression for the number n decreased by 9.
10.A movie ticket costs c dollars. Write an expression for the cost of 3 tickets plus a $2 online booking fee.
11.A jar has g green marbles. Write an expression for the number of marbles after 5 more are added.
12.Write an expression for 12 less than twice the number p.

3 printable pages

  • Algebraic Expressions Introduction, page 1 of 3: Expressions and Equations, Parts of Expressions

    Page 1

  • Algebraic Expressions Introduction, page 2 of 3: Write Expressions

    Page 2

  • Algebraic Expressions Introduction, page 3 of 3: 11. A jar has g green marbles. Write an expression for the number of marbles after 5 more…

    Page 3

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