Which SAT Subject tests to take?

<p>My son has a relatively tough time with the SATs. At this time, he has a 710 in math 2 and 700 in world history. I think he also has a 680 in US History. A few schools ask for three tests so what do you recommend he take and how hard are some of the tests considered?
--bio (he took an intro course at the cc this summer)??
--should he retake Math 2?
--should he take Spanish with or without listening? He took AP Spanish last year.</p>

<p>I guess he'd like to get one more score in the 700s. He is actually very good at math so possibly could increase that score.</p>

<p>Your advice is greatly appreciated.</p>

<p>If it were me I’d retake US.</p>