Comment Re:Or you never visualized them in the first place (Score 1) 845
Well, I just did (47 * 75) : 25 = 47 * 3 = something that will end with a 1. So only 141 would be a valid option. No need to complete the calculation. Besides the point that 47 * 3, will also certainly never be above 1000 if you make an estimate, which also only leaves 141 as the only option.
