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Search for E. S. (Equidistant Sequences): Pi Vol. 2

Search for E. S. (Equidistant Sequences): Pi Vol. 2 in Bloomington, MN
Current price: $7.49
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Search for E. S. (Equidistant Sequences) is a series of puzzle books designed for fun educational learning and problem solving. Each book has at least 100 equidistant sequence puzzles that may contain numbers, letters, or pictures.