Summary writing requires alot of practice
first ,you must established what is the Point required for your
summary
Next you must strip away the lengthy detail (eg. scorching heat
of the sun changed to hot day)
then you need to link up with suitable conjunctions
As a student who dun have much time
I will suggest you write down all the necessary points and strip
away the details
if upon first counting , you have exceeded 20 words ,go back to
your points and check if any points is irrelevant
whilst on the other hand, when you short of more than 9 words to
the word limit will imply you short of a point
separate a comment from a fact and answer to the question
requirement
examiners is not out to fault you .but if you choose not to
summarise properly(leaving so many details in the summary) , you
wont have high marks
Summary writing in gist is a shorter form of report writing as
compared to your paper 1
Recommended time for summary :45 mins
10 mins jotting points
10 mins summarising
10 mins checking grammar
remainining is polishing on conjunction and refinement b4
counting of word limits