This math topic focuses on finding the value of a term in a decreasing arithmetic sequence. Each problem provides a starting number and a common difference by which the sequence decreases for each successive term. Students are tasked with calculating the value of a specific term in the sequence. This advanced exercise enhances understanding of patterns and sequences, requiring application of arithmetic operations and sequence rules.
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Find the term for n=9 given this pattern rule (first term is n=1)
Start at 31 and subtract 2 for each term