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Addition and Subtraction Review

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  • 20 - 0 =
    20
  • 12 + 3 =
    15
  • 9 + 7 =
    16
  • 16 - 5 =
    11
  • 9 - 7 =
    2
  • 15 + 4 =
    19
  • 15 - 5 =
    10
  • 12 - 3 =
    9
  • 18 + 2 =
    20
  • 14 + 4 =
    18
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