Trouble with SAT II Math

<p>Can anyone help?
I always get a 790 to 800 on practice test on Mc-Grill and usually a 720 to 750 on Barrons. However, every time I do a real test, I get 650 to 670 which I never get when I am taking a practice one at home. Can anyone tell me what is wrong? I have already retaken the test 2 times!! Also, Can anyone tell me how should I study during the summer for the upcoming exam?</p>

<p>Please don’t suggest any SAT center because I do not have money to go there.</p>

<p>That’s really odd considering Barrons is harder than the real thing. It seems like it has something to do with the testing environment, not the material. Are you timing yourself properly at home? Are you a nervous test-taker?</p>