Hello dear,
For taking addmission in mit Cambridge
-Register for the SAT (Scholastic Aptitude Test), both SAT I and SAT II.
-Take them, and score above 2200 (max. being 2400) each, to be on a safer side.
-Meanwhile, be ready with all the extracurricular certificates and at least 3 of your teachers' recommendations.
-After you get the results(usually in a month or so, post the exam.),fill the application form as wisely as possible, for it contains 5 questions which judge your writing skills.
-Upload these applications and other required materials( which include your transcripts, showcasing your 9-12th grade performance )
-Documents relating to financial aid need to be posted to the corresponding office in the USA.
-All the above steps need to be completed before the month of January.
* Books which you can refer :
-The Official SAT Study Guide
-Kaplan ( practice papers)
-Barron's Guide
PS.: During my research, I found out that MIT is known to enroll most students with one or more patents. Even 2400 scorers struggle hard to get into, as premier institutes like MIT, Harvard, Caltech, etc., are known to admit students with exceptional academic as well as co-curricular achievements. I have read about students who scored 2400, but couldn't get into.On the other hand, some students with a score as low as 1600, but with outstanding co-curriculars get in.Moreover, this was a part of my personal research. Do your own research and apply wisely, All the best, hope you get in... :)