40 乘法 31 等于多少？

40 × 30 = 1200 40 × 32 = 1280 40 × 29 = 1160 40 × 33 = 1320 40 × 28 = 1120 40 × 34 = 1360 40 × 35 = 1400 40 × 27 = 1080 39 × 31 = 1209 41 × 31 = 1271 38 × 31 = 1178 42 × 31 = 1302 37 × 31 = 1147 43 × 31 = 1333 44 × 31 = 1364 36 × 31 = 1116 20 × 62 = 1240 31 × 40 = 1240 62 × 20 = 1240 13 × 4 = 52 79 × 21 = 1659 2 × 92 = 184 97 × 88 = 8536 57 × 61 = 3477 49 × 10 = 490 55 × 79 = 4345 2 × 54 = 108 55 × 61 = 3355 18 × 97 = 1746 91 × 96 = 8736