Subtract.

$11-10=$

$\underline{\begin{array}{cccc}& 1& 9& \\ -& 1& 3& \end{array}}$

$\begin{array}{cccc}& 2& 5& \\ -& 1& 4& \\ & & & \end{array}$

$\begin{array}{cccc}& 2& 3& \\ -& 1& 3& \\ & & & \end{array}$

$18-13=$ _____

Take away $11$ from $17$.