James Riley

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Math Challenge Level 2: 190 Fun & Creative Problems for Kids (Challenge Series: Level 2)
Riley, James; Eberts, Marge; Gisler, Peggy

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� 5.05

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Stand Up Math: 180 Fun and Challenging Problems for Kids! ; Level 3 (Level 3 Super Genbius Ages 10 & Up)
Riley, James; Eberts, Marge; Gisler, Peggy

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� 10.51

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Math Challenge: 190 Fun and Creative Problems For Kids, Level 1
Riley, James; Eberts, Marge; Gisler, Peggy

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� 17.84

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Super Sudoku Book 1: Levels 1-3, East To Medium
Riley, James E., Ph.D.

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� 3.81

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Super Sudoku Fusion
Riley, James E., Ph.D.

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� 18.90

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Super Wordoku: Book 2
Riley, James E., Ph.D.

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� 24.47

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Sudoku Sums
Riley, James E., Ph.D.

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� 24.16

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