Absolute Value and the Number Line Quiz

Grade 6 · Math · Quiz

Test your understanding of absolute value and number line concepts.

Questions

  1. What is |−31|?

    1. 31
    2. −31
    3. 0
    4. 13
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    Answer: 31

    Absolute value is distance from zero — |−31| = 31.

  2. |7| = |−7|

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    Answer: True

    Both 7 and −7 are exactly 7 units from zero, so their absolute values are equal.

  3. The opposite of −9 is ___.

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    Answer: 9

    Opposite numbers are the same distance from zero on opposite sides. Opposite of −9 is 9.

  4. Which number has the greatest absolute value?

    1. −20
    2. 15
    3. −10
    4. 18
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    Answer: −20

    |−20|=20, |15|=15, |−10|=10, |18|=18. 20 is the greatest absolute value.

  5. Order from least to greatest: 3, −7, 0, −1

    1. −7, −1, 0, 3
    2. −1, −7, 0, 3
    3. 3, 0, −1, −7
    4. 0, −1, −7, 3
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    Answer: −7, −1, 0, 3

    Number line order: −7 is furthest left, then −1, then 0, then 3.

  6. Absolute value is always greater than zero.

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    Answer: False

    |0| = 0. Absolute value is always greater than or equal to zero, not strictly greater.

  7. The distance between −4 and 4 on the number line is ___.

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    Answer: 8

    Distance = |4 − (−4)| = |4+4| = |8| = 8.

  8. Which inequality is correct?

    1. −5 < −2
    2. −2 < −5
    3. −5 = −2
    4. 0 < −3
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    Answer: −5 < −2

    −5 is further left on the number line, making it smaller than −2.

  9. A submarine is at −300 feet. What does the absolute value of −300 represent?

    1. The depth below sea level
    2. The submarine's speed
    3. Sea level altitude
    4. The distance traveled
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    Answer: The depth below sea level

    Absolute value removes the sign — |−300| = 300 represents 300 feet below sea level (depth, not direction).

  10. |0| = ___

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    Answer: 0

    Zero is 0 units from zero, so |0| = 0.

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