21 乘法 16 等于多少？

21 × 15 = 315 21 × 17 = 357 21 × 14 = 294 21 × 18 = 378 21 × 13 = 273 21 × 19 = 399 21 × 20 = 420 21 × 12 = 252 20 × 16 = 320 22 × 16 = 352 19 × 16 = 304 23 × 16 = 368 24 × 16 = 384 18 × 16 = 288 25 × 16 = 400 17 × 16 = 272 4 × 84 = 336 6 × 56 = 336 7 × 48 = 336 8 × 42 = 336 12 × 28 = 336 14 × 24 = 336 4 × 25 = 100 11 × 48 = 528 83 × 46 = 3818 81 × 60 = 4860 38 × 41 = 1558 94 × 78 = 7332 68 × 66 = 4488 72 × 27 = 1944