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The Ancient Formula: A Mystery with Fractions

The Ancient Formula: A Mystery with Fractions

Regular price $29.32 USD
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A puzzle from Sifu's grandfather has everyone stumped. A circle divided into wedges shows part of the formula for an ancient medicine. But some wedgesand another circleare blank, and no one knows how the original formula disappeared! Joy, Adam, Amy, and Sam will have to use clues—and fractionsto discover the truth about...

THE ANCIENT FORMULA

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