argh!things r gg downhill!

damn i could haf got e full 20% for my math test had i
1)stuck 2 my original ans for 1 q
2)pressed the damn calculator to confirm e numerical ans instead of relying on my own instincts!

s***!sigh..it's over so i can;t do anything liao...so does tt mean i can get 80% of e marks since we're allowed 2 wrong qs to get e full mark?hope so...i need 2 do well for math man!