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Thử thách 1 - Mathematics Toán tư duy Mỹ

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  • 6 + 4 + 3 + 2 + 7 + 8 + 10 =
    40
  • 8 + 7 + 6 + 5 + 4 + 3 + 2 =
    35
  • 9 + 4 + 1 + 6 + 2 =
    22
  • 1 + 5 + 9 + 6 + 5 =
    26
  • 9 + 3 + 4 + 7 + 6 + 1 + 2 =
    32
  • 1 +2 +3 +4 +5 + 6 +7 +8 +9
    45
  • 7 + 4 + 5 + 6 + 3 =
    25
  • 3 + 7 + 6 + 5 + 4 + 5 + 9 =
    39
  • 8 + 7 + 9 + 3 + 2 + 1 =
    30
  • 4 + 6 + 5 +7 + 5 + 3 =
    30
  • 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 =
    55
  • 4 + 6 + 8 + 5 + 2 + 8 + 2 + 5 =
    40
  • 8 + 9 + 2 + 1 + 6 =
    26
  • 6 + 7 + 4 + 3 + 7 =
    27
  • 8 + 7 + 6 + 4 + 3 + 2 =
    30
  • 8 + 4 + 3 + 9 + 1 + 7 + 2 + 6 + 8 =
    48
  • 5 + 7 + 8 + 2 + 3 + 5 =
    30
  • 6 + 8 + 9 + 1 + 4 + 2 + 5 =
    35
  • 10 + 6 + 4 + 8 + 9 + 2 + 1 =
    40
  • 10 + 6 + 7 + 4 + 3 =
    30
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