Get your timer out and see whether you can remember the golden rule from grade school math class.

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 ...

Among high school students and adults, girls and women are much more likely to use traditional, step-by-step algorithms to solve basic math problems – such as lining up numbers to add, starting with ...