Beautiful patterns and neat results occur everywhere in mathemtics. Here’s a combination of both that can also be used as a magic trick, if you’d[…]
Decades ago, I taught an experimental campus-wide Seminar entitled “Creativity and Problem Solving”. One of the early assignments was to write a limerick using the[…]
1 x 1 = 1 11 x 11 = 121 111 x 111 = 12321 1111 x 1111 = 1234321 11111 x 11111 = 123454321[…]
Caveat Emptor! Here’s a tip that might save you money or at least some misery. Have you ever noticed that carpet is often priced by[…]
(Some) SPECIAL MATH DATES IN 2024 Here are just a few (see #5) of the mathematically special dates in 2024. Some of passed already, but[…]
SOLUTION: 1. Fill the 3-gallon jug and pour it into the 5-gallon jug. 2. Re-fill the 3-gallon jug and pour it into the partially-filled 5-gallon[…]
1. How many natural numbers are between the square roots of 8 & 80? 2. What’s the largest three-digit number divisible by both 7 &[…]
HOPEFULLY-EASY RIDDLES? Let’s try to make up for the over-complicated Puzzle from last time! Here are some good old standard riddles. (Perhaps you’ve heard some[…]
The Amazing Matching Birthdays Fact QUESTION: Suppose you are in a gathering that includes, say, three dozen folks. How likely is it that two of[…]