Archive for the ‘Game’ Category

Monday Math Madness #11

Monday, July 21st, 2008

MMM #11 is a variation on MMM #9. I promise I won't do any more variations on this problem after this one! Consider all of the 6-digit numbers that one can construct using each of the digits between 1 and 6 inclusively exactly one time each. 123456 is such a ...

Monday Math Madness #9

Monday, June 23rd, 2008

Last Friday Blinkdagger announced a winner for MMM #8. Here's MMM #9: Consider all of the 6-digit numbers that one can construct using each of the digits between 1 and 6 inclusively exactly one time each. 123456 is such a number as is 346125. 112345 is not such a number since ...

Monday Math Madness contest #3 ending soon

Saturday, April 5th, 2008

If you've not gotten your entry in for contest #3 you've only got through Monday night to do so. We've only gotten 10 correct submissions for this contest so far, so your chances of winning the prize are better than they were for the last contest. SHARETHIS.addEntry({ title: "Monday Math Madness contest ...

It’s Monday Math Madness time! (contest #3)

Monday, March 31st, 2008

We've completed two Monday Math Madness contests. Last Friday Blinkdagger announced that Joshua Zucker, director at Julia Robinson Mathematics Festival, was randomly selected as the winner of the 2nd contest. Now it's my turn to post a contest problem. Those of you who are astute readers may have noticed that ...

Mathematician David Gale leaves legacy

Wednesday, March 26th, 2008

Earlier this month UC Berkeley professor emeritus of mathematics David Gale passed away. Gale made a number of significant contributions to mathematics and he loved puzzles, games, and finding beauty in mathematics. Gale's daughter had this to say: SHARETHIS.addEntry({ title: "Mathematician David Gale leaves legacy", url: "http://wildaboutmath.com/2008/03/26/mathematician-david-gale-leaves-legacy/" });

A very clever way to solve the first Monday Math Madness problem

Sunday, March 23rd, 2008

On March 3rd Blinkdagger and I posted the first Monday Math Madness problem. On March 11th, after the first contest ended, I posted a couple of different solutions to the problem. Pat Ballew, even though he wasn't picked as the random winner, impressed me with a very clever solution to ...

Monday Math Madness #2 now at Blinkdagger

Monday, March 17th, 2008

Blinkdagger has posted the second Monday Math Madness contest. It has a fun St. Patrick's Day theme. Check it out! You've got a week to solve this problem and send in your well-explained solution. The Blinkdagger guys are giving out $10 in Amazon gift certificate cash to a randomly-selected winner. April 7th ...

Keep those Monday Math Madness answers coming!

Wednesday, March 5th, 2008

Four of you have submitted answers to Monday Math Madness so far but only two of them are correct. Remember, the Blinkdagger guys and I are picking a good random answer, not the first good answer. So, you've all still got a chance to win $10 to Amazon. Heather, from the ...

Eleusis: A different kind of card game

Sunday, January 20th, 2008

In 1956 Robert Abbott invented a game he called Eleusis. In 1959 Martin Gardner popularized the game in his Scientific American column. Eleusis is what's called an "induction game" which means that players need to try to induce the rules of the game. Inductive games are compared to deductive games, ...

How fast can you do mental Math?

Thursday, January 17th, 2008

There's an interesting web-site, brainetics.com, that is all about doing mental Math quickly. I have to confess that while I know quite a few mental Math tricks and while I've written quite a number of posts and made several videos about mental Math tricks I'm not particularly fast at applying ...