Vrai: 581 + 200 = 781, 564 + 400 = 964, 134 + 500 = 634, 736 + 200 = 936, 519 + 200 = 719, 442 + 100 = 542, 674 + 200 = 874, 606 + 300 = 906, Faux: 577 + 100 = 234, 399 + 600 = 310, 256 + 500 = 368, 771 + 100 = 571, 156 + 200 = 456, 582 + 300 = 557, 357 + 500 = 388,

Additions à 3 nombres.

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