To order a set of decimals, compare them with each other and decide which are bigger:
1. Look at the digits in each place value column, one at a time from left to right.
2. If the digits are:
- the same, move on to the next place value column.
- different, place them (and the number associated with them) in order the required order.
3. Continue the process until all the decimals are arranged in order.