50
750
18500
650
693500
50
The smallest 2-digit number that can be rounded off to 100 is 95. When rounded to the nearest ten, 95 becomes 100. This is because 95 is 5 units away from 100, making it the smallest number in the 90s that can be rounded to 100.
55
750
18500
650
693500
It is: 3.45 that rounds off to 3.5
10
It is: 500
100000.
850