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一年級 數學科

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  • ? + 7 = 14
    7
  • 7 + ? = 12
    5
  • ? + 8 = 16
    8
  • ? + 8 = 17
    9
  • ? + 5 = 12
    7
  • ? + 6 = 15
    9
  • 3 + ? = 12
    9
  • ? + 5 = 13
    8
  • 6 + ? = 11
    5
  • ? + 9 = 17
    8
  • 5 + ? = 13
    8
  • 6 + ? = 12
    6
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