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Questions tagged [math-puzzle]

Questions related to small scale mathematical questions that are often pursued for recreation purposes and require novel (to the participant) and compelling problem solving approaches.

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19
votes
16answers
3k views

Tricks for computing things in your head

There are quite a lot of tricks/shortcuts enabling doing calculations efficiently in your head. (One of them that came to me today is the "squaring a number ending with a 5" trick I wrote about in ...
44
votes
22answers
16k views

How to explain Monty Hall problem when they just don't get it

Talking to some friends, I was asked to explain the answer to the Monty Hall problem (see also here;) .... they were having some trouble because whoever explained it to them didn't do a very good job. ...
11
votes
3answers
399 views

Playful problems in mathematics

This answer describes an analogy between finite state machines and mazes. This allows for some playful exercises, like Draw a representation of a word accepted by the following automaton... which ...
4
votes
2answers
152 views

Does solving crosswords help with recall of definitions?

I have an idea to help with self-study and recall of definitions. It is to create a crossword where the clues are the definitions and the words to solve are the concepts being defined. I haven't ...
6
votes
4answers
444 views

Are puzzles a good way to interest pre-college students?

Nothing more quickly disspitates the myth that most people aren't interested in math than hitting them with a good puzzle and watching the instinctive human urge to solve it get to work. To be fair, ...
1
vote
0answers
89 views

What's the age recomendation for my app?

I've developed an android math game called MathLab that has started to gain popularity. It's a simple fill-in-the-grid puzzle with variable cell sizes and locking cells. My daughter's math teacher got ...