It depends on whether you are rounding to the nearest 5, 10, 50 or whatever.
50
50
50
45,46,47,48,49,50,51,52,53,54
It depends on whether you are rounding to the nearest 5, 10, 50 or whatever.
50
50
500
It is: 100
50
It depends on whether you are rounding to the nearest integer, nearest 10, nearest 50 etc.
20 30 40 50 60
50
55
3900
750.4 if rounding to the nearest whole number. 754, if rounding to the nearest 10. 774, if rounding to the nearest 50. 874, if rounding to the nearest 250.