True: 439 + 40 = 479, 674 + 70 = 744, 691 + 20 = 711, 461 + 10 = 471, 798 + 60 = 858, 625 + 80 = 705, 927 + 60 = 987, 779 + 60 = 839, False: 465 + 90 = 200, 495 + 50 = 569, 531 + 30 = 666, 636 + 80 = 457, 463 + 70 = 920, 478 + 40 = 827, 384 + 10 = 618,

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