This math topic focuses on calculating the number of ways to arrange words with repeated letters using permutations and factorial concepts. Specifically, it addresses scenarios with four letter words where at least one letter is repeated. For example, participants find the number of possible arrangements for the words "HUSH," "PUPP," "FEET," "PREP," "FOOT," "MUMM," and "BUBB," showing their solutions in multiplication format. The problems use basic factorial knowledge to compute the arrangements considering the repeated letters in each word.
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How many ways can these letter tiles be ordered to spell 'TENT'? Show as a multiplication.