9 乘法 40 等于多少？

9 × 39 = 351 9 × 41 = 369 9 × 38 = 342 9 × 42 = 378 9 × 37 = 333 9 × 43 = 387 9 × 44 = 396 9 × 36 = 324 8 × 40 = 320 10 × 40 = 400 11 × 40 = 440 7 × 40 = 280 12 × 40 = 480 6 × 40 = 240 13 × 40 = 520 5 × 40 = 200 4 × 90 = 360 5 × 72 = 360 6 × 60 = 360 8 × 45 = 360 10 × 36 = 360 12 × 30 = 360 97 × 68 = 6596 61 × 4 = 244 77 × 20 = 1540 34 × 61 = 2074 92 × 41 = 3772 91 × 80 = 7280 42 × 75 = 3150 75 × 66 = 4950