Under the usual process of rounding, 9317 rounds down to 9300. Rounding up would be 9400.
1000 is 994 rounded up to the nearest 100.
100
Rounded up to the nearest tens would be 100. Rounded to the nearest tens is 90.
0
743 rounded up to the nearest 100 (hundreds place) is 800.
3,300
200
700
100
100
4200
2184 is rounded up to 2200.