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9×5 = 8×9 = 6×9 = 8×4 =
6×8 = 7×8 = 5×8 = 8×7 =
9×5 = 45;8×9 = 72;6×9 = 54;8×4 = 32;
6×8 = 48;7×8 = 56;5×8 = 40;8×7 = 56;
故答案为:
45;72;54;
32;48;56;