If the number is 5 and up, then you round up Ex. 3.06 You would round it to 3.1 because it's a 6 which is 5 or up. But if the number is 4 or under then you don't round Ex. 3.02 You wouldn't round and it would end up being 3 because the 2 would turn into a 0 and then you'd have to drop the zeros.
B. Julius Caesar, dictator of Rome, is stabbed to death in the Roman Senate house by 60 conspirators led by Marcus Junius Brutus and Gaius Cassius Longinus on March 15.