8 乘法 40 等于多少？

8 × 39 = 312 8 × 41 = 328 8 × 38 = 304 8 × 42 = 336 8 × 37 = 296 8 × 43 = 344 8 × 44 = 352 8 × 36 = 288 7 × 40 = 280 9 × 40 = 360 6 × 40 = 240 10 × 40 = 400 11 × 40 = 440 5 × 40 = 200 12 × 40 = 480 4 × 40 = 160 4 × 80 = 320 5 × 64 = 320 10 × 32 = 320 16 × 20 = 320 20 × 16 = 320 32 × 10 = 320 5 × 93 = 465 84 × 21 = 1764 3 × 79 = 237 74 × 64 = 4736 11 × 10 = 110 86 × 48 = 4128 21 × 92 = 1932 81 × 42 = 3402