These are decimal numbers, and dots above some of the digits make them recurring decimals. One dot means the digit under it repeats infinitely. In other words, it goes on forever (and ever and ever).

Converting between fractions, decimals and percentages is a useful problem-solving skill. The data can be more easily ordered by size when written in the same format. Calculations often give a decimal ...

A single, decimal figure offers convenience when calculating, but units of feet and inches are the norm. If your business works with construction supplies, clothing or room dimensions, you will ...