Dear employer,
I have read your entire brief and, excitedly, I love to apply for the job. I'm excited because I've always loved math and it would my immense pleasure to be of assistance to someone out there who needs it. I once edited Chalktalk Academy's SAT practice Q and A in math. I've also been involved in setting questions for another company's SAT Q and A, also in math. I thereby apply for the job and hope that my my application would be favorably considered. I'm familiar with all listed topics. I studied computer science in school where I did a lot of math.
I'm patient, enthusiastic, creative, innovative, understanding, knowledgeable and pleasant to work with.
After all that has been said, most importantly, I would really love to have a good working relationship with you in the long run.
Regards,
Kayode.