IGCSE Grade Threshold : How to Score A*

"What are the marks needed for me to score an A* in Mathematics?"
"What are the percentages of scores for me to score an A in Biology?"

These are the questions often being asked by IGCSE students when comes to setting respective goals for their exams.
Here are the lists of latest IGCSE grade thresholds for all IGCSE students:

PHYSICS (0625) Paper 1,3,6
A* = 154/200 (77%)
A = 134/200 (67%)

CHEMISTRY (0620) Paper1,3,6
A* = 138/200 (69%)
A = 122/200 (61%)

BIOLOGY (0610) Paper 1.3.6
A* = 143/200 (71.5%)
A = 125/200 (62.5%)

ADDITIONAL-MATHEMATICS (0606) Paper 1,2
A* = 150/160 (94%)
A = 120/160 (75%)

MATHEMATICS (0580) Paper 2, 4
A* = 172/200 (86%)
A = 145/200 (72.5%)