20 乘法 28 等于多少？

20 × 29 = 580 20 × 27 = 540 20 × 30 = 600 20 × 26 = 520 20 × 31 = 620 20 × 25 = 500 20 × 32 = 640 20 × 24 = 480 19 × 28 = 532 21 × 28 = 588 22 × 28 = 616 18 × 28 = 504 23 × 28 = 644 17 × 28 = 476 24 × 28 = 672 16 × 28 = 448 7 × 80 = 560 8 × 70 = 560 10 × 56 = 560 14 × 40 = 560 16 × 35 = 560 28 × 20 = 560 36 × 16 = 576 66 × 55 = 3630 40 × 91 = 3640 44 × 60 = 2640 77 × 71 = 5467 98 × 12 = 1176 18 × 35 = 630 48 × 5 = 240