200
245 rounded to the nearest hundreds is 200.
The question is asking you is 245 closer to 200 or 300.
We know that half way is 250.
So 245 must be closer to 200 than 300. So we round it down,
245 is 200 to the nearest hundred.
Well, isn't that a happy little question! When we round 245 to the nearest hundred, we look at the tens digit, which is a 4. Since 4 is less than 5, we keep the hundreds digit the same, so 245 rounded to the nearest hundred is 200. Just a gentle adjustment to make our number feel more at ease.
80,000 is already rounded to the nearest hundreds.
500
0
0
3571000
2600
6600
3600
4300
4800
1400
3900