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2025 AMC 10B Problem 2

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2025 AMC 10B Problem 2AMC 10 Step by Step
Name:                             Date: September 13, 2026
Modular Arithmetic · difficulty 2 of 5 · about 2 min · position P1-10

Jerry wrote down the ones digit of each of the first 20252025 positive squares: 1,4,9,6,5,6,…1,4,9,6,5,6,\dots . What is the sum of all the numbers Jerry wrote down?

  1. A)

    90259025

  2. B)

    90709070

  3. C)

    90909090

  4. D)

    91159115

  5. E)

    91609160

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