<p>How much does it matter whether you’ve taken for example Calculus by senior year or whether your behind a level or two( not because your failing classes but because you’ve just been going by regular pace not taking summer courses and such)</p>
<p>Math placement is done early on during your childhood (like 5th grade I believe). Colleges understand this. If you are not majoring in a mathematical field and not applying to the top 10 schools in the nation and get good grades in all your math classes, you will be fine. Otherwise, you would have to do summer school or get ahead somehow.</p>
<p>It shouldn’t matter too much, though obviously being more advanced is better, just as being ahead of everyone in, say, English is better. But MIT, for example, says that for SAT IIs, you can take math level 1 or level 2, depending on what your math background has prepared you for.</p>