80 乘法 8 等于多少？

80 × 7 = 560 80 × 9 = 720 80 × 6 = 480 80 × 10 = 800 80 × 11 = 880 80 × 5 = 400 80 × 12 = 960 80 × 4 = 320 79 × 8 = 632 81 × 8 = 648 78 × 8 = 624 82 × 8 = 656 83 × 8 = 664 77 × 8 = 616 84 × 8 = 672 76 × 8 = 608 8 × 80 = 640 10 × 64 = 640 16 × 40 = 640 20 × 32 = 640 32 × 20 = 640 40 × 16 = 640 81 × 81 = 6561 55 × 33 = 1815 5 × 3 = 15 45 × 59 = 2655 54 × 38 = 2052 24 × 16 = 384 87 × 89 = 7743 13 × 73 = 949