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 recurring decimals Rounding to significant figures Upper and lower bounds Dividing by fractions Laws of indices Negative indices Converting between an ordinary number and standard form.

1. A fraction cannot have zero as denominator. 2. To simplify a continued fraction always starts from bottom and work upwards. 3. Conversion of a Decimal Fraction into a Vulgar Fraction To convert a ...

Students around the world often dislike mathematics and eagerly await the day when they won’t have to struggle with long, complicated calculations. While the hate is widespread, a comprehensive ...