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addition and subtraction level one

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  • 9 - 7 =
    2
  • 12 + 7 =
    19
  • 13 + 3 =
    16
  • 13 - 3 =
    10
  • 12 - 7 =
    5
  • 13 + 8 =
    21
  • 15 + 5 =
    20
  • 10 - 5 =
    5
  • 8 + 6 =
    14
  • 17 + 6 =
    23
  • 11 - 6 =
    5
  • 6 - 6 =
    0
  • 6 + 6 =
    12
  • 10 + 5 =
    15
  • 13 - 8 =
    5
  • 15 - 5 =
    10
  • 10 + 2 =
    12
  • 17 - 6 =
    11
  • 12 - 2 =
    10
  • 8 - 6 =
    2
  • 19 - 1 =
    18
  • 11 + 6 =
    17
  • 19 + 1 =
    20
  • 7 + 9 =
    16
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