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

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

Students put all of their addition and subtraction skills together to solve equations. In this lesson, students put all of their addition and subtraction skills together to solve equations. Julia ...

Here you will find a video about addition and subtraction. Watch this, and then test your knowledge with a short quiz before exploring the rest of the collection. This section contains videos from our ...

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 ...

(soft music) (soft music) (air whooshes) (soft music) (soft music) (soft bells ringing) (soft music) (cartoons speaking gibberish) - [Children] Math Mights. - Hi, Kindergarten Math Mights. Thanks for ...