Coins:
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1, 2, 5, 10, 20, 50 Cents. They are called EuroCents, officially. Now, remember that they are spelled the same everywhere in Eu, but pronounced differently, according to the language spoken in each country (in Italy, for example, they are pronounced "Chents" or, using the Italian full word "Centesimi")

1, 2 Euro

Banknotes:
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10, 20, 50, 100, 200, 500 Euro



12 Countries adopted Euro, that is all EU members Except UK, Denmark, and Sweden, if I am not mistaken.