<p>MIT has 2 slots for “AMC10/12”, lumped together. I interpreted this to mean that you put down your top 2 scores, regardless of which test it was, not that one slot is for AMC 10 and one slot is for AMC 12. The top 9th and 10th graders, trying to qualify for USAMO, may choose not to take the 10 at all.</p>