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  1. Errata

    Errata Please click a link below to download the PDF of the errata for a particular range of years. ... and Textbook Errata Please click a link below to download the PDF of the errata for a particular range ...

  2. Happy New Year!

    2 = 2,036,162 units 2.   ♦ Page 1 of the linked PDF contains PROBLEMS & SOLUTIONS. Page 2 contains ONLY ... PROBLEMS. ♦ DOWNLOAD PDF       ...

  3. Nunc Plaga Saepius

    laoreet neque venio. At duis interdico lobortis occuro ulciscor. PDF Download:  Capto duis ea hos meus ...

  4. Let the Competitions Begin!

    8th grade.   ♦ Page 1 of the linked PDF contains PROBLEMS & SOLUTIONS. Page 2 contains ONLY ... PROBLEMS. ♦ DOWNLOAD PDF       ...

  5. Sequences and Patterns

    The sum of the ninth and tenth numbers is 15 + 11 = 26.   ♦ Page 1 of the linked PDF contains PROBLEMS ... & SOLUTIONS. Page 2 contains ONLY PROBLEMS. ♦ DOWNLOAD PDF       ...

  6. Happy Pi Day

    r = 18π/2π = 9 units. Thus, the total perimeter is 17π + 2(9) = 17π +18 units.   ♦ Page 1 of the linked PDF ... contains PROBLEMS & SOLUTIONS. Page 2 contains ONLY PROBLEMS. ♦ DOWNLOAD PDF       ...

  7. April Showers

      ♦ Page 1 of the linked PDF contains PROBLEMS & SOLUTIONS. Page 2 contains ONLY PROBLEMS. ♦ DOWNLOAD ... PDF       ...

  8. Making Sense of Numbers

    4!/2! = 4 × 3 = 12 positive four-digit integers containing these digits. ♦ Page 1 of the linked PDF ... contains PROBLEMS & SOLUTIONS. Page 2 contains ONLY PROBLEMS. ♦ DOWNLOAD PDF ...

  9. Voter Turnout

    vote. ♦ Page 1 of the linked PDF contains PROBLEMS & SOLUTIONS. Page 2 contains ONLY PROBLEMS. ... ♦ DOWNLOAD PDF ...

  10. Prime Number Sense

    ♦ Page 1 of the linked PDF contains PROBLEMS & SOLUTIONS. Page 2 contains ONLY PROBLEMS. ♦ DOWNLOAD ... PDF ...