I used the 5 paragraph essay format for both the GRE and GMAT and never got anything other than perfect scores on them :/ You don't need that structure, but fo

I used the 5 paragraph essay format for both the GRE and GMAT and never got anything other than perfect scores on them :/ You don't need that structure, but for what they are looking for, it does often make your life easier. Then again the essay part is the most pointless part for those pointless tests.