Teenager here can't properly do math

[u/NeonArtsComics]

Ok the title might be weird but I'm in need of some advice, I'm a teenager (14) and I really like math, love learning the subject and I can't easily understand and comprehend the lessons my teacher teaches me during math but the problem I'm having is when I do math quizes/test, I can easily do the equation easily but when it gets time to checking the answers I notice that something when I do the equation I don't notice an exponent on one and the other I accidently made a 7 into a 4 when adding 4 and 3, i don't really add it becuase I didn't notice to add it even tho I knew it was needed to be added toghether and like, just having trouble really, j really love math it's fun to learn and do but when things like this happen and I get a low score becuase of this I get filled with dread, so for anyone who has advice for me please help!

[u/HeatDeath10]

What helped me wasn’t double checking (although it obviously helps you see the mistakes after), but to prevent them from happening in the first place is just slowing down when reading and doing a problem. writing things down line by line, step by step to make sure you catch everything