2021: Making numbers using all the four digits
A super activity where we can make the numbers from 1 to 27 using a few simple rules. Good for...
Category: Puzzles
The Book of Cross Numbers
A free book of 66 cross numbers (here) originally created with X-figure PC program (now available...
New Puzzle Page
The Association of Teachers of Mathematics (ATM) has a new free online puzzle page. Started in...
