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Addition and subtraction facts

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  • 20 - 10
    12
    10
    5
    1
  • 9 + 3
    12
    14
  • 7 + 8
    18
    15
    14
    19
  • 9 + 9
    0
    18
    14
    12
  • 17 - 5
    22
    4
    12
    8
  • 5 + 6 =
    11
    8
    9
    12
  • 6 + 6
    18
    20
    12
    16
  • 2 + 2 + 2 + 2
    3
    8
    6
    1
  • 13 - 9
    7
    4
    12
    5
  • 14 - 9
    5
    6
    7
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