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 ...

Rhesus macaque monkeys performed nearly as well as college students at quick mental addition, researchers reported Monday, adding to the evidence that non-verbal math skills are not unique to humans.

Ever dreamt of solving math problems in your head with the speed of a calculator? Mental math might seem challenging, but it's a skill attainable through the right tools and techniques. The abacus, an ...

Ralph and Matrix have more mental maths questions, including some on multiplication. Quiz 2: Division and factors. audioQuiz 2: Division and factors Ralph and Matrix have more mental maths questions, ...