24 2. SET, WHOLE NUMBERS, AND NUMERATION The answers in our numeration system: The following table summarizes the attributes of the numeration systems we have studied: 2.3. The Hindu-Arabic System This is our system. Features: (1) 10 symbols can be used to represent all whole numbers — 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. (1A) Suppose we only used 5 symbols — 0, 1, 2, 3, 4. (2) Grouping by 10’s – ours is a base 10 system. (a) Bundles of sticks model – each group of 10 sticks is bundled with a rubber band.