8 乘法 80 等于多少？

8 × 79 = 632 8 × 81 = 648 8 × 78 = 624 8 × 82 = 656 8 × 83 = 664 8 × 77 = 616 8 × 84 = 672 8 × 76 = 608 7 × 80 = 560 9 × 80 = 720 6 × 80 = 480 10 × 80 = 800 11 × 80 = 880 5 × 80 = 400 12 × 80 = 960 4 × 80 = 320 10 × 64 = 640 16 × 40 = 640 20 × 32 = 640 32 × 20 = 640 40 × 16 = 640 64 × 10 = 640 29 × 4 = 116 92 × 13 = 1196 42 × 13 = 546 33 × 3 = 99 80 × 10 = 800 23 × 72 = 1656 6 × 27 = 162 20 × 83 = 1660