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  • Is 81 a square number?
    Yes. 9 x 9 = 81. 9² = 81.
  • Is this a square number? Why or why not?
    Yes, because the counters make a square and all the arrays are equal.
  • Is this a square number? Why or why not?
    No, because the arrays are not equal.
  • True or false. 6² = 6 x 2.
    False
  • What is the multiplication for 5²?
    5 x 5
  • Is 49 a square number?
    Yes. 7 x 7 = 49. So 7² is 49.
  • What is a prime number?
    A number with exactly two factors.
  • True or false. 5³ = 5 x 3
    False
  • 2³ = ?
    8
  • 3³ = ?
    27
  • 5² = ?
    25
  • 8² = ?
    64
  • What is a composite number?
    A number with more than two factors.
  • 3² = ?
    9
  • What is the multiplication for 2⁴?
    2 x 2 x 2 x 2
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