Abstract
Clemens wants to buy some sweets from his pocket money at the kiosk of the good-natured troll Eberhard. “But I am paid with magic euros (M€) and magic cents (MC),” Eberhard instructs him. Clemens wants to leave the kiosk disappointed again, but Eberhard holds him back and points to an exchange machine to the left of the counter.
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Schindler-Tschirner, S., & Schindler, W. (2019). Mathematische Geschichten I – Graphen, Spiele und Beweise. Für begabte Schülerinnen und Schüler in der Grundschule. Springer Spektrum. (English translation (2021): Mathematical Stories – Graphs, Games and Proofs. For gifted students in primary school. Springer.)
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Schindler-Tschirner, S., Schindler, W. (2023). Payment Problems at the Kiosk. In: Mathematical Stories II - Recursion, Divisibility and Proofs. essentials(). Springer, Wiesbaden. https://doi.org/10.1007/978-3-658-38611-5_3
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DOI: https://doi.org/10.1007/978-3-658-38611-5_3
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Publisher Name: Springer, Wiesbaden
Print ISBN: 978-3-658-38610-8
Online ISBN: 978-3-658-38611-5
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