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Unit 4 Review: Expressions & Exponents

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  • Simplify: 5 + 3 × 2
    11
  • Write an expression for “the sum of x and 9
    (x + 9)/3
    divided by 3.”
  • Simplify: 3(2² + 4) − 5
    19
  • Simplify: 12 − [4 + 2(3²)]
    −2
  • Evaluate: 4²
    16
  • Simplify: 10 − [2 + 3(4)]
    −4
  • Evaluate when x = 3: 2x² + 4x − 1
    29
  • Simplify: 3 × 2³ + 4
    28
  • Write using exponents: 5 × 5 × 5 × 5
    5⁴
  • Evaluate: (5² − 2³) × 2
    66
  • A rectangle’s length is 3x and width x + 2. Write an expression for its area.
    3x(x + 2) or 3x² + 6x
  • Simplify: 4² + 6 × 2
    28
  • Combine like terms: 5a + 7 + 3a − 2
    8a + 5
  • Simplify: 4 + 3² × 2 − (8 ÷ 4)
    18
  • Simplify: (2 + 3)³
    125
  • Simplify completely: 2(3y + 4) + 5y − 2
    11y + 6
  • Evaluate: (9 − 3)² ÷ 3
    12
  • Write an expression for “8 more than a number n.”
    n + 8
  • Simplify: (2 + 4)² ÷ (3 − 1)
    18
  • Evaluate: (5² − 10) ÷ 5
    3
  • Simplify: 6 + (3 × 4) − 5
    13
  • Simplify: (7x + 2x) + 4
    9x + 4
  • What does a coefficient tell you?
    The number multiplied by the variable
  • Evaluate: (10 − 2)² ÷ (4 + 4)
    8
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