Addieren Addieren im Zahlenraum bis 1000 1 2 3 4 2 4 20 40 200 + + + + + = = = = 3 5 30 300 8 230 304 520 473 140 246 230 304 520 473 140 246 230 304 520 473 140 246 + + + + + + + + + + + + + + + + + + = = = = = = = = = = 5 600 3 200 7 300 50 60 500 6 100 1000 500 700 60 25 600 250 56 560 + + + + + + + + + 7 a) 970 880 860 + + + 20 40 70 ... ... ... 70 80 60 170 180 160 270 280 260 + + + + + + + + + 20 40 70 20 40 70 20 40 70 b) c) 500 350 220 Wer kommt weiter? Addition 2 Summand Summe Summand Summe + 3 = 5 5 280 280 + + = = 40 340 360 360 + + = = 50 450 470 470 + + = = 60 260 6 590 590 591 + + + = = = 60 63 63 450 450 452 + + + = = = 70 75 75 780 784 784 + + + = = = 50 50 52
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