1000
1000
1000
36527
1284 rounds to 1300. 976 rounds to 1000. 489 rounds to 500. 1042 rounds to 1000. The rounded figures add to 3800. The actual figures add to 3791, so it is quite close.
1000
No such thing.
1000
953 rounds up to 1000
1000
1000
To the nearest 1000 it is 500.
1000
It rounds to zero.
That rounds to zero.
It rounds up to 1000 because 600 is greater than 500
345 rounds to zero.