Well, let's take a moment to appreciate the number 444. When we round it to the nearest thousand, it stays the same because it is already in the nearest thousand place. So, 444 rounded to the nearest thousand remains 444. Just like a happy little tree, it's perfect just the way it is.
400
1000
1000
921 rounded to the nearest ten thousand is 0. Rounded to the nearest thousand is 1000.
1000
400
400
1000
1000
440
1000
176 rounded to the nearest 1000 is 0
1000
0
1000
214357000
128000