Math problem?

What is the sum of all the digits in the sequence. 1,2,3,4,5,.............,99,100

3 Answers

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  • 1 decade ago
    Best Answer

    Here's how you do this..

    pair up the numbers

    1 + 99 = 100

    2 + 98 = 100

    3 + 97 = 100

    down to

    49 + 51 = 100

    This accounts for 4900

    At this point you still have the 50 and 100 so add that

    to get 5050

  • 1 decade ago

    5050

  • Anonymous
    1 decade ago

    cool

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