Square Root, Difficulty Level =2

$\underline{\begin{array}{rr}& 91\\ +& 39\end{array}}$	$\underline{\begin{array}{rr}& 97\\ +& 13\end{array}}$	$\underline{\begin{array}{rr}& 78\\ +& 64\end{array}}$	$\underline{\begin{array}{rr}& 98\\ +& 64\end{array}}$
$\underline{\begin{array}{rr}& 59\\ +& 39\end{array}}$	$\underline{\begin{array}{rr}& 97\\ +& 22\end{array}}$	$\underline{\begin{array}{rr}& 58\\ +& 5\end{array}}$	$\underline{\begin{array}{rr}& 62\\ +& 35\end{array}}$
$\underline{\begin{array}{rr}& 69\\ +& 12\end{array}}$	$\underline{\begin{array}{rr}& 47\\ +& 18\end{array}}$	$\underline{\begin{array}{rr}& 64\\ +& 52\end{array}}$	$\underline{\begin{array}{rr}& 48\\ +& 33\end{array}}$
$\underline{\begin{array}{rr}& 93\\ +& 40\end{array}}$	$\underline{\begin{array}{rr}& 84\\ +& 79\end{array}}$	$\underline{\begin{array}{rr}& 77\\ +& 2\end{array}}$	$\underline{\begin{array}{rr}& 23\\ +& 11\end{array}}$

---