Welches Zeichen steht für welche Zahl? 27 + 3 = 3 × 10 × = 75 − 15 × 5 = 20 + 25 = = = × = + = 50 = = = = = = = = = = = = = = = = = = = = = = = = = = = ÷ = + = 18 ÷ = × = 36 × = × = 81 + = + = 80 30 54 50 = 49 = 21 = 80 = 24 = 68 = 60 = 36 = 75 = 30 = 100 = 14 = 34 = 100 = 39 4 1 2 3 56 SB 90 Mit Zahlen knobeln Nur zu Prüfzwecken – Eigentum des Verlags öbv
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