If math is easy and natural to her, unless her highschool lacks academic excellence, she's probably pretty good with all of her studies. If she's got a gregarious, outgoing nature, I'll bet she's popular too. Her math aptitude probably demonstrates a mindset that follows logic. The next year or two (in college) should reveal (to her) what path she prefers to follow. Just beware of the minefields (low-esteemed boyfriends, partying, unaccountable independence, etc.). If she succeeds in her undergraduate endeavors w/the same accolades of high school, recruiters should be beating down her doors 3 years from now and she can take her choice.