Darragh has a Golden Eagle coin in his collection with a mass of 13.551 g . An uncirculated Golden Eagle coin has a mass of 13.714 g . How much mass has Darragh's coin lost? I

To find out how much mass Darragh's coin has lost, simply subtract the mass of Darragh's coin (13.551 g) from the mass of the uncirculated coin (13.714 g). So, 13.714 g - 13.551 g = 0.163 g. Darragh's coin has lost 0.163 g of mass. Mathematically, this little exercise also shows how coins can change in mass and value over time due to wear and tear! In the world of numismatics (coin collecting), the condition of a coin drastically affects its collectibility and worth, so keeping coins in mint condition can be quite the adventure!