Mathematics is not difficult. If you know the basics, you will get 80 points. No problem.
Use transparent adhesive. No correction fluid. correction tape
You can't bring a mat. Because the examination room is not used for close visits. So it is impossible to know if there is anything wrong with the watch.
Instead, it will be checked. Pay close attention to you. I hope this suggestion can be useful to you in the senior high school entrance examination.
Cheating in Chinese. Quick hands and quick eyes. No note. If you catch it, it's zero. . Never.