You do not specify the serial numbers, signatories or quantity.
The last Australian One Dollar notes were put into circulation in 1982, and were progressively withdrawn from circulation from 1984 after the introduction of the One Dollar coin.
Because they have consecutively numbered serial numbers, they are presumably in mint uncirculated condition.
A quantity of consecutively numbered uncirculated banknotes in mint condition, depending on the serial numbers, could fetch anything from $7 to $925 AUD each.
As a "range" of banknotes, they potentially have a higher value than might be expected for the single note value multiplied by the number of notes.
A reputable coin dealer will be able to give a more accurate valuation.
An Australian 2001 Five Dollar note (MacFarlane/Evans)(serial DK01826180), uncirculated and in absolute mint condition could fetch up to $33 AUD. If it has been circulated but still in good condition, it might fetch anything from $6 to $14 AUD. A consecutively numbered wad would have a signifcantly higher value. A reputable coin dealer will be able to give a more accurate valuation.
You do not give any details of country, year or condition. If you refer to the Australian One Dollar note, which has been out of circulation for 25 years, and the notes are uncirculated and have consecutively numbered serial numbers, you probably have something of value. Take them to a reputable coin dealer for an accurate assessment and valuation.
You do not give any detail to identify the notes. Presumably they are in mint or uncirculated condition. A group of sequentially numbered notes would have some value above that of the same number of non-sequentially numbered notes.
An uncirculated 1988 Australian Bicentennial Ten Dollar note depending on the serial number, could get anything up to $100 AUD. A consecutively numbered group would get significantly more. These notes were issued as a trial for the later release of polymer bank notes. The 1988 notes were not very good and tended to fall apart. They were withdrawn after a short time. A reputable coin dealer will be able to give a more accurate valuation.
An Australian 2005 Five Dollar note (MacFarlane/Henry)(serial BA05 to KC05), uncirculated and in absolute mint condition could fetch up to $12 AUD. These notes are still in circulation. A set of 15 consecutively numbered uncirculated mint condition notes could fetch significantly more. A reputable coin dealer will be able to give a more accurate valuation.
An Australian 1985 Two Dollar note (Johnston/Fraser), uncirculated and in absolute mint condition could fetch up to $14 AUD. If it has circulated but still in good condition, it might fetch anything from $3 to $5 AUD. If it is the first or last of a serial number range, the value will increase dramatically. The Australian Two Dollar note is no longer in circulation. A reputable coin dealer will be able to give a more accurate valuation.
The last Australian One Dollar notes were printed in 1982. An Australian One Dollar note (Johnston/Stone)(serial DGJ to DPS), uncirculated and in absolute mint condition could fetch up to $7 AUD. If it has been circulated but still in good condition, it might fetch anything from $1 to $3 AUD. Three consecutively numbered notes are likely to fetch a higher value. A reputable coin dealer will be able to give a more accurate valuation.
An Australian One Dollar note (Johnston/Stone - Serial DGJ to DPS), uncirculated and in absolute mint condition could fetch anything up to $7 AUD. A group of 8 uncirculated consecutively numbered notes would be of great interest to many collectors, and is likely to attract a higher value as a set. A reputable coin dealer will be able to give a more accurate valuation.
It would depend on the condition of the notes, but generally, the 1975 notes are worth more.
You do not give any detail. Any collector value would depend greatly on the signatories and the serial numbers. A wad of 8 consecutively numbered uncirculated notes would have a significant collector value, more so than the value of one note multiplied by eight.
The first Australian One Dollar notes were issued in 1966 at the introduction to decimal currency. The last Australian One Dollar notes were issued in 1982. They were replaced with a One Dollar coin in 1984 and progressively withdrawn from circulation.
Depending on the year of issue (the serial number), an uncirculated mint condition Australian One Dollar note might fetch anything from $9 to $990 AUD. A consecutively numbered group would possibly get considerably more. For any reasonable valuation of Australian banknotes, the serial number, the signatories and any peculiarities would need to be known. A reputable coin dealer will be able to give a more accurate valuation.