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Festival de suma y resta

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  • 97 - 36 =
    61
  • 657 - 24 =
    633
  • 14 + 21 =
    35
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    43
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    21
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    246
  • 89 - 42 =
    47
  • 784 - 652 =
    132
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    38
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  • 200 + 34 =
    234
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    39
  • 300 - 1 =
    299
  • 345 + 24 =
    369
  • 93 + 7 =
    100
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