You can count in 10s using a number line. This number line starts at 0 and ends at 90. The numbers go up in units of 10. Let's use this number line to count in 10s to work out how many pencils ...

Skip counting is a useful skill if you need to count sets of objects, such as pairs of shoes, gloves, the wheels on a tricycle, or even money. Counting on in twos, threes, fives and tens is easy ...

Humans, for the most part, count in chunks of 10 — that's the foundation of the decimal system. Despite its near-universal adoption, however, it's a ...