16 乘法 21 等于多少？

16 × 20 = 320 16 × 22 = 352 16 × 19 = 304 16 × 23 = 368 16 × 24 = 384 16 × 18 = 288 16 × 25 = 400 16 × 17 = 272 15 × 21 = 315 17 × 21 = 357 14 × 21 = 294 18 × 21 = 378 13 × 21 = 273 19 × 21 = 399 20 × 21 = 420 12 × 21 = 252 4 × 84 = 336 6 × 56 = 336 7 × 48 = 336 8 × 42 = 336 12 × 28 = 336 14 × 24 = 336 52 × 64 = 3328 71 × 76 = 5396 54 × 34 = 1836 93 × 11 = 1023 98 × 93 = 9114 70 × 70 = 4900 71 × 44 = 3124 63 × 77 = 4851