Ergänzen Additives und subtraktives Ergänzen mit Über- und Unterschreitung von Zehnern 51 1 3 38 46 + - = = 45 38 27 27 30 + + + = = = 34 30 34 100 100 95 95 90 90 85 85 80 80 75 75 70 70 65 65 60 60 55 55 50 50 45 45 40 40 35 35 63 72 + - = = 71 63 88 95 + - = = 97 87 2 4 57 53 59 55 53 55 51 54 68 62 68 62 68 68 62 62 75 73 77 75 79 76 71 74 86 92 34 47 47 25 86 38 + - + - + + - - + - + - + + - - + - + - + + - - + - + - + + - - = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = 62 47 62 47 62 62 47 47 73 58 71 54 76 74 59 56 84 66 83 67 86 81 65 68 93 85 42 38 56 32 77 39 34 34 30 - - - = = = 26 30 26 25 30 35 30 35 25 34 – = 30, 30 – = 26 ? ? 27 + = 30, 30 + = 34 ? ?
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