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Adding/Subtraction within 20

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