30 乘法 40 等于多少？

30 × 39 = 1170 30 × 41 = 1230 30 × 38 = 1140 30 × 42 = 1260 30 × 37 = 1110 30 × 43 = 1290 30 × 44 = 1320 30 × 36 = 1080 29 × 40 = 1160 31 × 40 = 1240 28 × 40 = 1120 32 × 40 = 1280 33 × 40 = 1320 27 × 40 = 1080 34 × 40 = 1360 26 × 40 = 1040 12 × 100 = 1200 15 × 80 = 1200 16 × 75 = 1200 20 × 60 = 1200 24 × 50 = 1200 25 × 48 = 1200 19 × 82 = 1558 58 × 7 = 406 17 × 67 = 1139 4 × 36 = 144 33 × 30 = 990 89 × 30 = 2670 59 × 23 = 1357 31 × 28 = 868