✔ 最佳答案
I think you should not focus on the lose of the Maths Competition,
although you are unhappy with the competition,
圖片參考:
http://l.yimg.com/f/i/tw/ugc/rte/smiley_17.gif
and your classmates diappointed with you,
then you can have improvement after the competition.
Take positive, take this as a feedback and always look back about it when you lose and even win.
Forget the sadness about the competition,
improve the mathmetics' skills then your classmates and your teacher will satisfied.
Never give up, then I'm sure you may do it.