So regrouping the teacher doesn't want 14 and 0.1 she wants something to take the decimals apart and whole numbers exg 10.2 +3.9=10+0.2+3+0.9=10+3+0.2+0.9=13+1.1=14.1
The 4 is in the tenth place...so you have to look at the number beside it to see if you round up or down. It's a 6, which is greater than 5 so you round up.
