Well, let's take a moment to appreciate the number 4499. When we round it to the nearest hundred, it becomes 4500. Every number is special in its own way, just like every tree in a painting adds beauty to the whole picture.
that actually doesn't round because the number is in the thousands place not the ten thousands place
In today's notation it is: (IV)CDXCIX = 4000+400+90+9 = 4499 But the Romans probably wrote the equivalent of 4499 simply as I(IV)D = -1 +4000 +500 = 4499
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736 to the nearest 1000 is 1000. When rounding to the nearest 1000, you look at the hundreds place of the number in question. Since the hundreds place in 736 is less than 500, you round down to the nearest 1000, which is 1000.
It is: 500 to the nearest 100 but zero to the nearest 1000
To the nearest ten, 980 To the nearest hundred, 1000