18500
750
50
693500
650
The smallest number that can be rounded off to 400 is 350, as any number from 350 to 399.99 will round to 400. Conversely, the greatest number that can be rounded off to 400 is 449.99, since numbers from 400 to 449.99 will also round to 400.
55
750
50
650
693500
It is: 500
50
10
850
100000.
15000
It is: 3.45 that rounds off to 3.5