I think the following are the comments signed by parents on the math paper

1. Keep working hard, believe in yourself, and don't be afraid of failure, and the more frustrated you are, the braver you will be!

2. There has been obvious progress in this exam. I hope you will make persistent efforts and come on!

3. The result of this exam is not ideal. I hope you will work harder and try to get good results next time.

4. Great. I hope you will keep it up and make persistent efforts!

5. There is progress in this exam. I hope you will continue to work hard and strive for better results next time.

6. Failing the exam once doesn't mean failing the exam next time. Just don't give up, come on!

7. I hope you will make persistent efforts. Come on, by going up one flight of stairs!

8. You did well in this exam. I hope you will create more brilliant achievements!

9. Keep working hard and keep cheering. You can do it!

1. I hope you can sum up your experience and strive for better results next time.