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Signed Numbers Review

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  • Use the picture to answer the question.
    C. -12/5
  • What is the absolute value of 66?
    66
  • Identify the error: To find the absolute value of a number, re-write the number as the opposite of itself.
    Error: Absolute value is not the opposite of the number. The correct answer is to find the absolute value of a number, count how far it is from zero.
  • What is the absolute value of -21?
    21
  • Use the picture to answer the question.
    B. -15
  • Use the picture to answer the question.
    B. -7.0
  • What is the opposite of -17?
    17
  • Identify the error: The definition of absolute value is - how far a number is from its opposite.
    Error: "its opposite." The correct answer is: Absolute value is how far a number is from zero.
  • Use the picture to answer the question.
    A. 8.0
  • What is the opposite of -2/9?
    2/9
  • What is the absolute value of -203?
    203
  • Use the picture to answer the question.
    A. -5/1
  • Use the picture to answer the question.
    C. rational numbers and integers only
  • Identify the error: The absolute value of 5 is -5 because -5 is the opposite of 5.
    Error: Absolute value is not the same as finding the opposite. The correct answer is the absolute value of -5 is 5 because it is 5 units from zero.
  • What is the opposite of 32?
    -32
  • Identify the error: The absolute value of -4 is -4 because -4 is 4 units to the left of zero.
    Error: "absolute value of -4 is -4 ". The correct answer is the absolute value of -4 is 4.
  • Use the picture to answer the question.
    D. 0.2
  • A scuba diver was at a depth of − 110 feet. What is the absolute value of the scuba diver?
    110
  • Identify the error: The absolute value of a number can be negative.
    Error: Absolute value cannot be negative. Absolute value is always positive.
  • What is the opposite of 49. 28?
    -49.28
  • Use the picture to answer.
    Error: They are not the same. The correct answer is the first value is the opposite of the absolute value of 3 and then the absolute value of -3 is 3.
  • Use the picture to answer the question.
    B. 3.02
  • Identify the error: To find the absolute value of a number, you change the sign.
    Error: "change the sign". The correct answer is to find the absolute value of a number, count how far it is from zero.
  • Identify the error: The absolute value of -15 is -15 because -15 is 15 units to the left of zero.
    Error: "The absolute value of -15 is -15. The correct answer is the absolute value of -15 is 15.
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