How to improve SAT math score?

With only a few days left until the November test date I’m wondering if there is anything I can do to help improve my math score. I’m currently at a 2230 (650m, 780cr and 800wr) and I feel the math is really bringing me down. I’ve thus far done no prep for these tests but I apparently need to do something to get my math score up. Is there anything I can do over the next few days to help me get better at the math?