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7th Grade Math Unit Review

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  • A bus with 25 people makes a stop in the morning, letting off 10 people and letting on 6. The bus makes another stop a few minutes later to let off 2 more people. How many more or fewer people are on the bus after the second stop?
    19
  • 8-9 =
    -1
  • -12 + 24
    12
  • -13 + -13
    -26
  • 15 - 20 =
    -5
  • True or false: The absolute value of a number gives its distance from zero.
    TRUE!
  • 17 - 5 - 4 =
    8
  • True or false: The sum is how much one number differs from another
    FALSE! That is the DIFFERENCE!
  • 8 + -16
    -8
  • -4 + 11 + 3 =
    10
  • How can you use absolute value to add integers with the same sign?
    You add their absolute values, then add back the appropriate sign.
  • 41 - 3 + 3 =
    41
  • -10 + 20 - 7 =
    3
  • True or false: A positive number is a real number that is less than zero.
    False! That is a negative number!
  • -8 - (-9) =
    1
  • -9 + -10
    -19
  • True or false: 50 is a whole number AND a positive number
    TRUE!
  • -10 + 5
    -5
  • 15 + 16
    31
  • 7 + 27
    34
  • 20 + 9 - 7 =
    22
  • Determine which expression has a greater value: -3 + 9 - 7 OR -3 - 5 + 11
    -3 + 9 - 7 < -3 - 5 + 11
  • 18 + -5
    13
  • Determine which expression has a greater value: -8 + 10 - 5 OR -7 - 4 + 15
    -8 + 10 - 5 < -7 - 4 + 15
  • True or false: The sum of a number and its additive inverse is zero.
    TRUE!