Schnellere Mathe-Tricks und Tipps: 30 Tage bis zur Beherrschung der Zahlen, Taschenbuch von Jul...
19,25 €
Discover how you canquickly subtract by oversubtracting. Speed up your calculating withplace-value multiplication. See how to add in seconds by breaking anumber apart. It's a must for math lovers, as wellas students, teachers, and anyone who works with numbers on aregular basis.
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