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 ...

Can you solve it in under 30 seconds? The equation, shared by @BholanathDutta on X, is 75+25÷5x5. Ready for your timed test? But first, here's a hint: Ever heard of PEMDAS? The age-old acronym guides ...

Egan J Chernoff received and receives funding from SSHRC (Social Sciences and Humanities Research Council of Canada) which is not explicitly related to this article. Rina Zazkis received funding from ...