Non-decimal currency Non-decimal currency A non-decimal currency is a currency that has sub-units that are a non-decimal fraction of the main unit, i.e. the number of sub-units in a main unit is not a power of 10. Today only two countries in the world use non-decimal currencies. Both of these countries are in Africa. These are Mauritania (1 ouguiya = 5 khoums) and Madagascar (1 ariary = 5 iraimbilanja). However these are only theoretically non-decimal, as in both cases the value of the main unit is so low that the sub-unit is too small to be of any practical use and coins
Banknotes of the Australian pound tax on all issued or re-issued bank notes. A third currency reform act was passed on 22 December 1911 establishing the Commonwealth Bank. The Commonwealth Bank Act of 1911 specifically stated that the Bank was not to issue bills or notes for circulation. The Australian Treasury issued banknotes until a 1920 amendment to the Commonwealth Bank Act of 1911. The amendment established a note-issuing department within the bank which assumed those responsibilities previously held by the Treasury. On 14 February 1966 the Australian pound was replaced by a decimal currency, the Australian dollar, which was divided into one hundred cents.