This math topic focuses on identifying terms in decreasing arithmetic sequences. Each problem provides a sequence where students must calculate a specific term given its position (n-value). The problems vary by modifying the first terms and the decrement between consecutive terms. This exercises students' understanding of arithmetic patterns, particularly in identifying how sequences change over time and applying that pattern to find specific term values in the sequence.
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Find the term for n=15 in this decreasing pattern (first term is n=1)
76, 71, 66, 61, 56