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Unit 2 Math: The Structure of Numbers

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  • Simplify the expression.
    38
    13
    72
    6
  • True or False. All odd numbers are prime.
    False
    True
  • Is 47 prime or composite? Remember the 3, 5, 7 rule!
    Prime
    Composite
  • What is the rule for the following pattern? 55, 44, 33, 22
    Subtract 11
  • True or False. If a number greater than 2 can be divided by 2, 3, 5, or 7, it must be composite.
    True
    False
  • Is 17 prime or composite? Remember the 3, 5, 7 rule!
    Prime
    Composite
  • What is the rule for the input/output table?
    Subtract 5
    Divide by 5
    Multiply by 5
    Add 5
  • True or False. 2 is the only even number that is prime.
    True
    False
  • Simplify the expression.
    22
    12
    4
    15
  • Given the menu, how many total combinations of pizzas could you make?
    16
    15
    24
    30
  • True or False. 1 is a prime number because it can only be made by 1 x 1.
    False
    True
  • Simplify the expression.
    66
    3 R 4
    10
    24
  • Which expression in the equation should be solved first?
    4 x 5
    2 + 6
    16 ÷ 2
    7 + 4
  • If the pattern continues, what number will come next? 4, 8, 12, 16, 20, ___
    24
  • True or False. ALL even numbers are composite.
    True
    False
  • What is the prime factorization of 18?
    2 x 3 x 3
  • Is 33 prime or composite? Remember the 3, 5, 7 rule!
    Prime
    Composite
  • Which expression in the equation should be solved first?
    2 - 6
    4 + 8
    6 x 10
    8 ÷ 2
  • Which expression in the equation should be solved first?
    5 - 1
    1 + 6
    6 x 5
    4 + 1
  • Is 51 prime or composite? Remember the 3, 5, 7 rule!
    Prime
    Composite
  • What is the prime factorization of 12?
    2 x 2 x 3
  • What is the prime factorization of 44?
    2 x 2 x 11
  • Simplify the expression.
    72
    44
    18
    34
  • Is 95 prime or composite? Remember the 3, 5, 7 rule!
    Composite
    Prime
  • Simplify the expression.
    2
    14
    12
    45
  • If the pattern continues, what number will come 7th? 59, 57, 55, 53, 51...
    47
  • What is the rule for the following pattern? 4, 10, 16, 22, 28
    Add 6
  • If you had 4 pencils and 3 cap erasers, how many possible combinations could you make with 1 pencil and 1 eraser?
    7
    24
    12
    2
  • Which expression in the equation should be solved first?
    3 x 4
    6 + 20
    4 ÷ 6
    3 x 20
  • What number is missing from the table?
    42
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