Decimal notation
Prices in shops use a dot (or comma): 12.50 €.
Read it as: twelve euros and fifty cents (or just "twelve fifty").
Why a dot?
Because 1 € = 100 cents, the two digits after the dot are cents:
- 12.50 € → 12 € + 50 c.
- 3.05 € → 3 € + 5 c.
- 0.99 € → 0 € + 99 c (= 99 cents).
The first 2 digits after the dot are tens-of-cents and cents. Always two digits.
Watch out — write 0.05, not 0.5
- 0.5 € = 50 cents (because the 5 is in the tenths place).
- 0.05 € = 5 cents.
Always write two digits after the dot for money.
Cents → euros
Take whole hundreds out — they become euros.
250 cents = 2 € 50 c = 2.50 €.
105 cents = 1 € 5 c = 1.05 €.
Euros → cents
Multiply the euro number by 100, then add the cents.
12 € 50 c = 12 × 100 + 50 = 1250 c.
3.05 € = 3 × 100 + 5 = 305 c.
Adding decimals
To add 12.50 € + 3.20 €, line up the dots:
12.50
+ 3.20
-------
15.70 → 15 € 70 cTry it
Summary
- 12.50 € = 12 euros 50 cents.
- Always two digits after the dot.
- Convert with × 100 (€ → cents) and ÷ 100 (cents → €).
- When adding, line up the dots.