Assuming you mean nearest, not neatest, the answer is 67.1
300
It is: 0.5
459 rounded to the nearest 10 is 460
400
It's already there.
Assuming you mean nearest, not neatest, the answer is 67.1
340
3.3
200
300
It is: 0.5
It is 4.9
459 rounded to the nearest 10 is 460
900
It is 1.
400