Dot notation is used with recurring decimals. ... If we multiply this number by 100 it will give a different number with the same digits recurring. So if: \(x = 0.181818 \dotsc\) then ...

Save guides, add subjects and pick up where you left off with your BBC account. Dot notation is used with recurring decimals. The dot above the number shows which numbers recur, for example \(0.5 ...