2 乘法 40 等于多少？

2 × 39 = 78 2 × 41 = 82 2 × 38 = 76 2 × 42 = 84 2 × 37 = 74 2 × 43 = 86 2 × 44 = 88 2 × 36 = 72 1 × 40 = 40 3 × 40 = 120 4 × 40 = 160 5 × 40 = 200 6 × 40 = 240 7 × 40 = 280 8 × 40 = 320 9 × 40 = 360 1 × 80 = 80 4 × 20 = 80 5 × 16 = 80 8 × 10 = 80 10 × 8 = 80 16 × 5 = 80 16 × 29 = 464 33 × 98 = 3234 53 × 95 = 5035 59 × 44 = 2596 84 × 3 = 252 91 × 88 = 8008 19 + 61 = 80 8 + 72 = 80