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23 January, 19:38

How much : 100-99+98-97 + ... + 4-3+2-1 = ?

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Answers (2)
  1. 23 January, 21:09
    0
    100-99=1

    1+98 = 99

    99-97 = 2

    2+4=6

    6-3 = 3

    3+2=5

    5-1=4
  2. 23 January, 22:17
    0
    Without accurate calculations i would say 50
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