00:01
Let's try two different methods for rounding 3 ,846 to the nearest 100.
00:05
The first method, we're going to round it to the nearest 10th and then the nearest 100.
00:09
So to round to the nearest 10, you need to look at, well, what is to the right of the tens, that is the ones.
00:15
So we can look at the ones where there's a 6.
00:18
6 is greater than 5, and when you hear greater than 5 in rounding, you round up.
00:23
Therefore, the number in the 10's place is 4, goes up to a 5, and the 6 becomes a 0.
00:28
Meaning we round up to 3 ,850.
00:32
Then if we round this to the hundreds, well, we're looking at the hundreds.
00:37
So we should look at the tens in order to determine which way to round.
00:42
But we have five, which is, of course, equal to five, meaning we round up.
00:46
Thus, the eight becomes a nine, and everything else becomes a zero, giving us 3 ,900...