5 乘法 80 等于多少？

5 × 79 = 395 5 × 81 = 405 5 × 78 = 390 5 × 82 = 410 5 × 83 = 415 5 × 77 = 385 5 × 84 = 420 5 × 76 = 380 4 × 80 = 320 6 × 80 = 480 3 × 80 = 240 7 × 80 = 560 2 × 80 = 160 8 × 80 = 640 1 × 80 = 80 9 × 80 = 720 4 × 100 = 400 8 × 50 = 400 10 × 40 = 400 16 × 25 = 400 20 × 20 = 400 25 × 16 = 400 98 × 95 = 9310 37 × 74 = 2738 59 × 63 = 3717 2 × 98 = 196 65 × 2 = 130 95 × 21 = 1995 93 × 88 = 8184 19 × 42 = 798