addition

  • Puppy, collar, bone \”solution\”

    Hello mathematicians, puzzlers, and other curious people! This video shows my work on a puzzle posted last week. As you can see, we can get different answers in some puzzles, depending on how we interpret them. That\’s OK! Just make sure you take notes on what assumptions you make in solving a puzzle so that…

  • Testing Patterns

    Hello mathematicians, puzzlers, and other curious people! This video contains three conjectures, one proof, and one counterexample (and therefore one open conjecture), based on this previous post. The important idea of what we did here is if we can find a formula that\’s equivalent to how we\’re coming up with some numbers, and that formula…

  • Theorizing About Numbers

    Hello mathematicians, puzzlers, and other curious people! Today I have for you a number-generating procedure using a random number and some addition and subtraction. Pick a number. (I picked 573 by squishing the keypad with my fingers.) Add 1. (I get 574.) Instead, subtract 1 from the number you started with. (I get 572.) Now…