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
It is: 100.0 and not 99.9
It is: 0.3
686000
70
It is: 4200
200
It is 39,600
173.5
3
6.24
You would round it up to 550000