Ergänzen 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95100 1 3 2 32 21 78 45 32 97 53 42 88 42 13 16 25 34 68 52 58 42 14 17 26 35 95 47 99 53 15 18 27 36 88 53 88 + + - + + - + + - + + + + + - + - + + + + + - + - + + + + + - + - = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = 76 33 36 98 55 43 87 66 24 76 44 77 77 77 36 76 36 98 55 88 88 88 43 98 43 84 66 99 99 99 21 89 26 11 Was fällt dir auf? 31 85 42 25 94 86 52 98 23 64 67 99 65 43 89 78 81 24 94 76 66 87 35 45 4 Wie groß ist der Unterschied? 5 Additives und subtraktives Ergänzen zweistelliger Zahlen 98 98 + + = = 74 62 ... ... 21 98- - 32 - 43 - 54 - 87 - 76 - 65 98 74+ + 81 + 26 + 35 + 62 + 53 + 47 21 21 - - = = 87 76 ... ... 32 + ? = 72 72 + ? = 76 78 – ? = 38 38 – ? = 36 /
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