468
Wiki User
∙ 13y ago702
456 plus what equals 1242.\
456 plus 100 is equal to 556
123 + 456 + 7890 = 8469
An initial estimate would be 468 .
898 + 456 = 1354
777568 + 456 = 778024
789 + 456 = 1245
66 + 456 = 522
4002 + 456 = 4458
456 + 312 = 768
456 x 12 is 5,472