l1=Grid[Transpose[{{36,45,36,100,45}}],Alignment->Left]

l2=Grid[Transpose[{{36,45,36,100,45},{36,45,36,100,45}//Sort}],Alignment->Left]

l3=Grid[Transpose[{{36,45,36,100,45},{36,45,36,100,45}//Sort,{" ",72,90,100," "}}],Alignment->Left]

l5=Grid[Transpose[{{36,45,36,100,45},{36,45,36,100,45}//Sort,{" ",72,90,100," "},{" "," ",162,100," "},{" "," ",262," "," "}}],Alignment->Left]

l4=Grid[Transpose[{{36,45,36,100,45},{36,45,36,100,45}//Sort,{" ",72,90,100," "},{" "," ",162,100," "}}],Alignment->Left]

Manipulate[
Switch[x,1,l1,2,l2,3,l3,4,l4,5,l5],
{{x,1," "},{1->"Start",2->"Group Pairs Together",3->"Add Up Pairs", 4->"Add First Two", 5->"Add"},ControlType->RadioButtonBar,Appearance->"Vertical",Background->White},SaveDefinitions->True]