Correct spelling, explanation: fifteen is the correct spelling because it is made from the word five and the suffix -teen (which we add to all numbers between 13 and 19). v in five becomes an unvoiced f because it meets another unvoiced consonant t. Therefore fifteen is the correct form, not fiveteen or fiftheen.
Definition of fifteen:
numeral, number between fourteen and sixteen
– How much is this book? -It’s fifteen pounds.
I have fifteen pairs of shoes, I don’t need anymore.
Incorrect spelling, explanation: this spelling is incorrect because fifth is an ordinal number, which is not used to form other cardinal numbers, for example, fifteen. Roots for cardinal numbers are other cardinal numbers, so here it is five. V becomes f because it has to be unvoiced (since the next letter t is also unvoiced. Thus fiftheen is incorrect and fifteen is the correct form.
Incorrect spelling
Incorrect spelling
Incorrect spelling
Incorrect spelling
Incorrect spelling
Incorrect spelling
Incorrect spelling
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