In recent years a number of clever coin-weighing or ball-weighing problems have aroused widespread interest. Here is a new and charmingly simple variation. You have 10 stacks of coins, each consisting ...

Who says math can't be fun?! Try these math puzzles for a delightful challenge. Math is not everyone’s favorite, understandably. Hours of math homework and difficult equations can make anyone sour on ...

20 developing number-target puzzles with timer PowerPoint, standard PPTX and printable PDF, designed to build arithmetic fluency and confidence. Level 2 builds directly on the introductory puzzles ...

"The complete What Number Am I? number-deduction collection: 20 levels × 20 versions × 20 puzzles — 8,000 solver-validated puzzles in total. Students combine clues about factors, multiples, parity, ...

Mathematics is a “science which requires a great amount of imagination”, said the 19th-century Russian maths professor Sofya Kovalevskaya – a pioneering figure for women’s equality in this subject. We ...