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2009 AMC 10A Problem 5

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2009 AMC 10A Problem 5AMC 10 Step by Step
Name:                             Date: September 13, 2026
Bases & Digits · difficulty 1 of 5 · about 2 min · position P1-10

What is the sum of the digits of the square of 111,111,111111,111,111 ?

  1. A)

    1818

  2. B)

    2727

  3. C)

    4545

  4. D)

    6363

  5. E)

    8181

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