Final answer:
'Quinientos' is the best Spanish equivalent for 500.
Step-by-step explanation:
Quinientos is the best Spanish equivalent for 500. In Spanish, numbers from 1 to 999 are formed by combining the words for hundreds, tens, and units. 'Quinientos' represents 'five hundred' in Spanish. It is important to note that in Spanish, the word for 'hundred' changes to 'cien' when it precedes numbers like one, two, three, and four.
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