You can add or subtract numbers in lots of different ways. You can use number lines, number bonds, fact families, 10 squares and counters, or even just writing the numbers down. Sometimes it is faster ...

Tricky Math Riddles: The brain needs regular exercise to function well, and nothing stimulates it like solving riddles, puzzles, and brain teasers. These are fun and easy-to-do things that can work ...

Math puzzles can be a fun and engaging way to challenge your brain, sharpen problem-solving skills, and even promote mental agility. From simple addition problems to tricky questions that leave many ...

A new proof illuminates the hidden patterns that emerge when addition becomes impossible. The simplest ideas in mathematics can also be the most perplexing. Take addition. It’s a straightforward ...

The confusion (likely intentional) boiled down to a discrepancy between the math rules used in grade school and in high school. By Steven Strogatz Recently I wrote about a math equation that had ...