Ah, rounding numbers can be a peaceful experience. When we look at 25.9, we see that the number after the decimal point is 9, which is greater than or equal to 5. So, when we round 25.9 to the nearest tenth, it becomes 26.
33.0
0.1
It is: 100.0 and not 99.9
It is: 0.3
It is 39,600
It is: 4200
200
70
686000
173.5
6.24
3