7 乘法 80 等于多少？

7 × 79 = 553 7 × 81 = 567 7 × 78 = 546 7 × 82 = 574 7 × 83 = 581 7 × 77 = 539 7 × 84 = 588 7 × 76 = 532 6 × 80 = 480 8 × 80 = 640 5 × 80 = 400 9 × 80 = 720 4 × 80 = 320 10 × 80 = 800 11 × 80 = 880 3 × 80 = 240 8 × 70 = 560 10 × 56 = 560 14 × 40 = 560 16 × 35 = 560 20 × 28 = 560 28 × 20 = 560 16 × 93 = 1488 23 × 24 = 552 5 × 27 = 135 12 × 60 = 720 25 × 95 = 2375 88 × 29 = 2552 24 × 47 = 1128 49 × 30 = 1470