First of all, I want to thank my teachers. It is their teaching that has enabled me to achieve such results.

I also want to thank my classmates. It is because of everyone's healthy competition that my math scores can be greatly improved.

I also want to thank my family for their support and encouragement when I was in trouble. They gave me confidence to solve the difficulties.

Finally, I want to thank math. This award is only an encouragement, but the rigorous thinking and endless fun brought by mathematics are priceless. I will make persistent efforts to achieve better results!

Thank you all.

It is for reference only and can be changed according to your own preferences. Probably just write a thank-you letter to show your determination to work harder.