280x3=840
343 the way i see it u just do it like 4710+9*7 so 280+63=343
280
280 meters = 11,023.622 inches.
280 mph = 450.6 kph
not grammatically correct, but mathematically correct
About 93.3 x 3 = 280
3 and a half
56 times 5 = 280
8 times 35 = 280 is one example
14 * 20 = 280
280/5 = 56
280 times
2 times 140 = 280 is one example
3% of 280 is 8.4
3/4 * 280 = 210
3*280 = 840
280,000,000,000 or 280 billion