It take 9 stamps to mail a package. If Tyler has 150 stamps, how many packages can he mail?
How many stamps does Tyler have left over?
If he needs to mail out 17 packages, how many more stamps will he need?
+486 He can mail $\frac{150}{9}=16$ $\frac{6}{9}$, so he can mail $\boxed{16}$ packages.
He has $\boxed{6}$ stamps left over, because the remainder of the division was $6$.
To mail out $17$ packages, he would need $\boxed{3}$ additional stamps to get the total of $9$ for the last package.
