Quiz 3 Key

  1. Frauds and strings
    1. (2 pt) The Great Fraudini can read minds for any number from 1 through 63. Describe which cards he will use to give his answer if the number his victim is thinking of is 43.
    2. (2 pts) Write the number 168 (written here in base 10) in its base 2 representation. You can use any of our methods to do so, but show work.
    3. (2 pts) Use primitive counting and a ternary tree to write the string for 157.
  2. (2 pts) Write the prime factorization for 168, using a binary tree.
  3. (2 pts) Your reading Early Concepts of Number and Counting described several methods of primitive counting.
    1. How do the South Africans mentioned count to numbers above 100?
    2. The authors talk a lot about one-to-one correspondences. Describe how the Papua New Guineans used this concept.

Key:

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