How do you round 13.681 to 1 decimal place?
1 decimal place means the first number after the decimal, so here it's 6.
We then look at the number after it, which is 8.
If the number after 1dp is higher than 5, we round the number before it up
This means .68 becomes .7
If the number after 6 was lower than 5, it would stay at 6,
e.g; .63 would be .6
Hope this helps :)