what are the curencies accepted in macau.as we r from india ,

as we r from india we like to take a hongkong,macau shenshenof china tour for some 1 week or so. so i lke to know in specific if we can carry simply hongkong dollars and use the same in all places or is it will be cost saving if we use their specific loacl curencies in those places and as such have to carry seperate loacal curencies in varous denominations.thanks for yr extended help in advance.bye.