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MC2 Review 2

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  • What is a set?
    A group of numbers
  • What is a rational number?
    a/b where b is not zero and a, b are integers
  • How many seconds are there in one hour?
    3600
  • Find the product
    -11/21
  • What is the Multiplication property of zero write on the board, algebraic example
    a x 0 = 0
  • Name a rational number that would be a repeating decimal
    and correct answer
  • Greg borrowed $100 from his parents. After he did some chores, they reduced the amount of his debt by $25. Write an expression on the board for how much money he owes his parents afterwards.
    -100-(-25)
  • Naief is finding the sum − 7 + (4 3/4) on a number line. Does the result move to the left or the right?
    right as it increases
  • What is the result of a (-ve) - (-ve) ?
    It depends on which one has the larger absolute value
  • What is an Integer ?
    Not a decimal or a fraction
  • What property is this? ?+(−?)=?−?
    Additive inverse
  • Explain how we know the result (+ve or -ve) of a multiplication
    If the two numbers have the same sign the answer will be +ve. If the two numbers have a different sign then the answer will be -ve.
  • Two rational numbers are each less than 1. Is their product less than 1? Why or why not?
    Not necessarily
  • What is special about the 8?
    It is the Lowest Common Denominator
  • What is a subset?
    A set inside another set?
  • A positive integer would be included in which subset or rational numbers?
    Natural numbers
  • Name a rational number that will be a terminating decimal
    and correct answer
  • Give an example of a subset. ______ is a subset of _________
    ______ is a subset of _________
  • Find the decimal form of 7/8
    0.875
  • The lowest point on Earth’s surface is the shore of the Dead Sea, elevation −1,344.99 meters. The highest point, the summit of Mount Everest, is 30,380.42 meters above the Dead Sea. What is the elevation at the summit of Mount Everest?
    29,035.43 m
  • What number is in the set of all whole numbers but not in the set of all natural numbers?
    Zero!
  • What is the result of (+ve) + (-ve) ?
    It depends on which one has the larger absolute value
  • What property is this? ?(?+?)=??+??
    Distributive Property
  • Mr Richard is 1/4 what nationality?
    Scottish