@WistfullThinking 610 math + 680 CR = 1290, which is greater than 1270, so she will be offered direct admission.
OP, your chances of admission are over 99%. Re-taking the SAT, or taking the ACT and improving your score might give you a better chance at scholarships though. Also, MAKE SURE YOU APPLY BY NOVEMBER 1!!! This is the priority deadline for scholarships, and you have a very good chance of getting scholarships based on your stats.
http://admissions.indiana.edu/apply/deadlines.html
You can also send new ACT or SAT scores until January 15 that will be considered for scholarships.
I would recommend taking them asap if you are going to though. Also, IU doesn’t care about the writing sections at all as far as I know, so don’t waste time preparing for them, and take the ACT without writing if you are going to take it.