<p>I got a 5 in AP Calc AB and only a 3 in BC; that was good enough for the 20 series and <em>most</em> of the upper div classes.</p>
<p>The 20 series is really hit or miss depending on the professor. So many professors and grad students circulate it every year–just make sure you take a class with someone who has some kind of CAPE report and you’ll be fine.</p>
<p>you take the math 10 OR math 20 series. the only time in which you take both is when you transfer from 10–>20, in which case the school makes you repeat the last “10” class you did but with a “20” in front of it. </p>
<p>so if you wanted to transfer to 20C after taking 10B, they’d make you take 20B first.</p>