Get out your timer and number two pencil to see if your arithmetic skills from grade school are still intact.

What is 8.8–8.11? Feed it into a calculator, and pop comes the answer. Ask your favourite AI models instead, and chances are, most will be in a tizzy. We tested this simple subtraction task on a range ...

An abysmal showing by U.S. students on a recent international math test flabbergasted typically restrained education researchers. “It looks like student achievement just fell off a cliff,” said Dan ...