27 21 24 15 Das Einsineins von 3 Einsineins von 3 Trage die Zahlen der Dreierreihe ein! 1 -mal -mal -mal -mal -mal -mal -mal -mal -mal -mal -mal -mal -mal -mal -mal -mal 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 6 9 12 15 18 21 24 27 30 12 18 6 9 27 21 = = = = = = = = = = = = = = = = in in in in in in in in in in in in in in in in Jeweils 3 Schokostücke kommen in ein Säckchen. 2 Aufgabe und Umkehraufgabe 3 3 3 = = -mal -mal 3 3 24 15 = = in in 3 3 = = -mal -mal -mal -mal -mal -mal -mal -mal -mal 3 3 3 3 3 3 3 3 3 24 18 12 30 15 3 21 27 9 = = = = = = = = = in in in in in in in in in 4 44
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