Any two-digit number can be shown using tens and ones. For example, the number 34 can be divided into three lots of ten and four lots of one. JavaScript is required to view this activity.

A class of children order a set of cards numbered from 1 to 500 using hundreds, tens and units. Mr Numbervator asks the children to sort the cards into groups of 1-100, 101-200, 201-300 and 401-500.