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CALCULO MENTAL

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  • 2 x 9 / 3
    6
  • 32 + 14 - 36=
    10
  • 4 x 5 + 7=
    27
  • 3 x 8 / 2=
    12
  • 13 x 2 - 9 =
    17
  • 5 x 8 / 10
    4
  • 14 + 9 - 7
    16
  • 36 + 15 - 21 =
    30
  • 64 - 9 + 12 =
    67
  • 6 x 6 + 11 =
    47
  • 7 x 6 / 2
    21
  • 5 x 9 + 15
    60
  • 80 - 17 + 9 =
    72
  • 9 x 3 + 13
    40
  • 7 x 4 / 7
    4
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