2 乘法 90 等于多少？

2 × 89 = 178 2 × 91 = 182 2 × 92 = 184 2 × 88 = 176 2 × 93 = 186 2 × 87 = 174 2 × 94 = 188 2 × 86 = 172 1 × 90 = 90 3 × 90 = 270 4 × 90 = 360 5 × 90 = 450 6 × 90 = 540 7 × 90 = 630 8 × 90 = 720 9 × 90 = 810 3 × 60 = 180 4 × 45 = 180 5 × 36 = 180 6 × 30 = 180 9 × 20 = 180 10 × 18 = 180 52 × 77 = 4004 2 × 99 = 198 4 × 6 = 24 37 × 73 = 2701 86 × 21 = 1806 67 × 75 = 5025 95 + 85 = 180 98 + 82 = 180