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<p>Some of the AP Calculus AB questions are used in the AB Calculus BC exam. Therefore, the difficulty of the Calculus AB questions on the BC exam is at the same level with the questions found on the AB exam. Those questions are not hard if you 1) had previous exposure, or 2)you’re strong with your math skills. </p>
<p>And heck, the BC exam has 50% AB questions, 50% BC questions. The meaning behind knowing your Calculus AB material cold is because you should be able to tear through the AB-level questions, and earn easy points towards your total raw score for your BC score as well as the AB subscore. </p>
<p>The BC questions is where it gets nail-biting. If you know your AB material well, that could help offset potential losses that will come from incorrectly answering BC questions.</p>