No. For every year they have been minted, they have been minted in huge quantities, so they are neither rare nor valuable.
The best you might get for an uncirculated Proof FDC coin might be £2 GBP.
The 1983 2 Pence coin inadvertently had the word "NEW" stamped on them due to selection of the incorrect die at the Mint. These coins are very collectible, if not valuable, but were only included in some Mint Sets packaged by the Royal Mint.
For a few months in 1998, 2 Pence coins were minted from bronze.
These coins are still potentially in circulation so, unless they are part of a Proof or uncirculated mint set or are individual Proof or uncirculated coins and in absolute mint condition, they are worth Two Pence.
2 pence
The only British 2 Pence coins minted in 1983 were minted for either Mint Uncirculated or Proof coin sets. A total of 631,000 British 2 Pence coins were minted for the Mint Uncirculated coin sets. The "Mule" (2 New Pence instead of Two Pence) coins were included in sets packed by the Royal Mint for the "Martini and Heinz presentation sets", and not all sets included the "Mule" 2 Pence coin. No "Mule" coins were included in any of the Royal Mint sets. Nobody has ventured a specific quantity of coins that were minted, but rather the vague "some" or "a quantity". For want of a better answer, a number very significantly less than 631,000 of the 1983 "mule" 2 New Pence coins were minted.
One fifty pence and one five pence, one of them is not a five pence.
Some British 1983 2 Pence coins were minted with the word "NEW" on them. The "NEW" had been dropped from the coins reverse design in 1982. These coins were only issued in some Royal Mint sets. The 1983 error or mule coin would look the same as all other 2 New Pence coins issued from 1971 to 1981, except with the year 1983.
To make £2 using 2p coins, you would need 100 coins. This is because £2 is equivalent to 200 pence, and dividing 200 pence by 2 pence gives you 100.
7 x 2 Pence coins and 1 x Penny.
120 Pounds is equal to 12,000 Pence. 12,000 Pence divided by 2 Pence = 6,000 x 2 Pence coins.
200 Pounds is equal to 20,000 Pence. 20,000 Pence divided by 2 Pence = 10,000 x 2 Pence coins.
There are 40 five pence coins in 2 pounds. This is because 1 pound is equal to 100 pence, so 2 pounds is equal to 200 pence. Dividing 200 pence by 5 pence gives us 40 five pence coins.
Unless they are in mint condition, none of them have any significant value, and even then it would not be much. All years of issue of the 1 and 2 Pence coins are still potentially in circulation, so are worth 1 and 2 Pence respectively. The decimal New Half Penny and Half Penny coins were last issued for circulation in 1983 and were withdrawn from circulation and demonetised in December 1984. The larger pre-1991 5 Pence coins were withdrawn from circulation and demonetised in 1991. The larger pre-1993 10 Pence coins were withdrawn from circulation and demonetised in 1993. The larger pre-1998 50 Pence coins were withdrawn from circulation and demonetised in 1998. These coins have little or no value. Coins dated after the dates above, are worth whatever is inscribed on them.
A 20 pence and a 5 pence. One of them is not a 5 pence.
Oh, dude, it's like simple math, man. If you have five 2 pence coins, that's like 10 pence. So, like, if you just count out five of those bad boys, you've got yourself a solid 10 pence. Easy peasy, lemon squeezy.