This math topic focuses on recognizing and formulating equations for decreasing arithmetic patterns. Across several problems, students are presented with sequences of numbers and are tasked with selecting the correct equation that describes the pattern where \(n=1\) is the first term. Options for the equations are provided in various formats, and students must identify the accurate arithmetic expression that continues the sequence logically. The skill level is designed for advanced pattern recognition and algebraic thinking. This topic is part of a broader unit on "Patterns and Sums - Advanced".
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Find the correct equation to describe this decreasing pattern where n=1 is the first term
13, 10, 7, 4