# What is 217-:43, rounded to the nearest thousandth?

The calculator says: $5.046511628$
Thousandths means we round to 3 decimals. All we have to do is look at the one behind that. If it is $4$ or less, we round down, if it is $5$ or more, we round up, i.e. we raise the digit before it by $1$.
So $\frac{217}{43} \approx 5.047$