In addition to humans, some species of primates and birds have demonstrated under experimental conditions their ability to ...

Hello, I'm Mr Firth, and I need your help today as we learn to add and subtract within ten. You can use lots of things to help you add and subtract. Counters, number lines and even your fingers. Let's ...

Animal psychologists have found that giraffes can mentally combine small sums of objects, but can't perform the subtractive equivalent.

Mental maths is when you do calculations in your head instead of writing them down. Sometimes, it's just as quick to do calculations in your head as it is to write down every step. You can add and ...