Updated: 2024-12-28 19:50:13
Do you know that 2025 is a composite, deficient, evil, odd, square, and powerful number? I collect properties of numbers at my Number Gossip website, where you can also find detailed definitions of these terms. Provocatively, 2025 is also an apocalyptic power, meaning that 2 to the power of 2025 contains 666 as a substring. […]
Updated: 2024-12-28 17:09:47
Once, I gave a puzzle to my students as homework just to check their level of attention. Puzzle. A family has two identical twins. One of them is a boy, what is the probability that the other one is a boy? What can I say? Some of the students didn’t pay attention and gave weird […]
Updated: 2024-12-24 21:55:14
Here is a puzzle for middle school students from the Möbius tournament. Puzzle. For which natural numbers n greater than 1 it is possible to arrange n numbers 1 through n in a circle so that the difference between two neighbors always divides n? Share:
Updated: 2024-12-17 16:17:59
Some common mistakes in math and how to avoid them when doing your math problems
Updated: 2024-12-17 05:00:48
Updated: 2024-12-13 17:25:14
Updated: 2024-12-09 08:56:25
Discover perfect numbers through clear definitions, examples, the first ten, historical significance, and their relationship with Mersenne primes in this lesson.
Updated: 2024-12-08 13:19:32
Updated: 2024-12-06 20:23:35
Learn about the 4 basic number properties such as such as commutative, associative, distributive, and identity properties.
Updated: 2024-12-06 11:54:13
Updated: 2024-12-04 09:15:21
