decimal currency
sub-units are based on powers of 10
Australian dollar
official currency of Australia; also officially used in Kiribati, Nauru, and Tuvalu
Kiribati dollar
currency
Silver rouble
currency unit and coin of Russian Empire
euro
currency of most countries in the European Union
ruble
name of currency of Russia, Soviet Union, and several other countries
Roman scudo
currency of the Papal States until 1866