We tabulated the frequency with which simple addition and multiplication facts occur in elementary school arithmetic texts for grades 1-6. The results indicated a strong "small-fact bias" in both ...

From basic counting to automatic recall, see how students learn to grasp their addition facts.

Fact families Fact families are groups of numbers that have a relationship to each other. For each pair of addition facts, there are also two subtraction facts in the same family. Here is a fact ...

Discover addition and the equals symbol with this interactive article for Year 2 from BBC Bitesize.