Many students assume colleges will see every score they've earned on the SAT and ACT when they apply.
However, while some top-tier schools do require your full testing histories, many don't. Some even allow score choice for the SAT, which allows you to send only the scores you want them to see, or they allow you to pick your best ACT test date.
If you're aiming for a top-tier school like an Ivy League, Stanford, or MIT, read this guide to learn how they evaluate standardized tests to help you best prepare.