Reflection on Math First Chapter Assessment

I am not really satisfied with my on my Math First Chapter Assessment because I didn't get the score that I expected. I expected to get 80 to 90 points, but I got 70 points and the passing grade is 75. I thought I would get 90 points in my assessment because I thought if in Matematika I could get good scores, I could also good scores also in my Math assessment and I also thought that the topic about LCM and HCF is so easy. I deserves to get that point because I didn't learn before the day of assessment, I thought that assessment would be easy, but it isn't. For the Math Second Chapter Assessment, I would learn harder and to be more focus when the teacher is teaching. I hope I could get a higher score than the Math First Chapter Assessment.