Martha the Mathemagician lives on Calculation Island (where numbers grow on trees) with her life-long best friend Oscar the Owl and her Grandfather Max, who is an old and wise mathemagician. In this first book of the series, Martha is given her magic calculator and has to discover the secret code...
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Martha the Mathemagician lives on Calculation Island (where numbers grow on trees) with her life-long best friend Oscar the Owl and her Grandfather Max, who is an old and wise mathemagician. In this first book of the series, Martha is given her magic calculator and has to discover the secret code that will unlock its powers.
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