<p>Can you use two calculators while taking the SAT?
I'm most comfortable using both my TI-89 and TI-84. When I took the PSAT, my proctor at school said it was fine, but I wasn't sure if the official College Board rules say something different.</p>
<p>Technically, you can’t have both out on the desk at the same time. But you can keep one as a backup and switch even during sections. If you have a lax proctor though, you can probably get away with using both at the same time.</p>