15.8 Take the number after your desired decimal place. If it's 4 or lower, then the number at the desired decimal place stays the same (in this case, it stays .8). If it's 5 or higher, then the number at the desired decimal place raises by 1.
E.g. 15.869 rounded to 1 decimal place is 15.9.
E.g. 15.849 rounded to 1 decimal place is 15.8.
3.3 rounded to 1 decimal place is 3.0.
Go to the second decimal place; if it is less than 5; round down. If it is 5 or greater, round up. So, 1.51 rounded to 1 decimal place is 1.5.
To one decimal place it is rounded to 0.9
It is 8.8
It is 2.4
round 0.2975 to 1 decimal place = 0.3
2.73 ≈ 2.7 to 1 decimal place
It is then 31.2 when rounded to 1 decimal place
You round to 1.0
6.5- you round it until it has one decimal.
4.96432 rounded to 1 decimal place is 5.0.
It is 4.1 when rounded to 1 decimal place
3.3 rounded to 1 decimal place is 3.0.
Go to the second decimal place; if it is less than 5; round down. If it is 5 or greater, round up. So, 1.51 rounded to 1 decimal place is 1.5.
6.32 rounded to 1 decimal place = 6.3
because
334.4 is already in 1 decimal place