\subsection*{Section 6}                                                                                                                     
 % Multiplication and Division of Surds                                                                                                      
 \begin{questions}                                                                                                                           
     \Question[8] Simplify:                                                                                                                  
         \begin{parts}                                                                                                                       
         \begin{multicols}{2}                                                                                                                
         \part $4\sqrt{7}\times\sqrt{2}$                                                                                                     
         \begin{solutionordottedlines}[1in]                                                                                                  
         $4\sqrt{14}$                                                                                                                        
         \end{solutionordottedlines}                                                                                                         
         \part $6\sqrt{3}\times 4\sqrt{7}$                                                                                                   
         \begin{solutionordottedlines}[1in]                                                                                                  
         $24\sqrt{21}$                                                                                                                       
         \end{solutionordottedlines}                                                                                                         
         \part $12\sqrt{33}\div3\sqrt{3}$                                                                                                    
         \begin{solutionordottedlines}[1in]                                                                                                  
         $4\sqrt{11}$                                                                                                                        
         \end{solutionordottedlines}                                                                                                         
         \part $36\sqrt{15}\div4\sqrt{3}$                                                                                                    
         \begin{solutionordottedlines}[1in]                                                                                                  
         $9\sqrt{5}$                                                                                                                         
         \end{solutionordottedlines}                                                                                                         
         \part $7\sqrt{28}\div4\sqrt{7}$                                                                                                     
         \begin{solutionordottedlines}[1in]                                                                                                  
         $\frac{7\sqrt{4}\sqrt{7}}{4\sqrt{7}} = \frac{14}{4} = 3.5$                                                                          
         \end{solutionordottedlines}                                                                                                         
         \part $\sqrt{7}\times2\sqrt{7}$                                                                                                     
         \begin{solutionordottedlines}[1in]                                                                                                  
         $2\sqrt{49} = 14$                                                                                                                   
         \end{solutionordottedlines}                                                                                                         
         \part $7\sqrt{10}\times3\sqrt{2}$                                                                                                   
         \begin{solutionordottedlines}[1in]                                                                                                  
         $21\sqrt{20} = 42\sqrt{5}$                                                                                                          
         \end{solutionordottedlines}                                                                                                         
         \part $\sqrt{2}(2\sqrt{2}-\sqrt{6