Singapore

QualificationDescriptionStandardExtended
Singapore GCE A LevelTotal score from a maximum of best 3 H2 Level subject examinations taken within 2 years. Two H1 level subjects can be counted in place of one H2 level subject provided that the subject has not been taken at H2 level, and there is at least one H2 level subject in the calculation. 

H2 Level subjects: A=5, B= 4, C=3, D=2, E=1.  
H1 Level subjects: A=2.5, B=2, C=1.5, D=1, E=0.5.
33
Singapore GCE O LevelTotal score of the best five academic subjects taken within two years.

A=5, B= 4, C=3, D=2, E=1.   
1511