YOU may remember learning about PEMDAS in elementary or grade school as a way to remember how to solve an equation. The acronym often sparks a specific memory of learning how to solve equations, so ...

You don’t have to be a math whiz to know that 4 - 2 + 1 equals 3. Yet I was working with several students recently who said it equals 1. And it wasn’t their fault. Nor was it their teacher’s fault.

Sometimes BODMAS is just PEMDAS by another name. And no, the answer is not 100. By Steven Strogatz Mathematical Twitter is normally a quiet, well-ordered place, a refuge from the aggravations of the ...