<p>I was recently reviewing mistakes from the Blue Book. I came across a math question that said how many integers can k represent? The "correct" answers included 12. I am sure that this is a mistake because 12 is not an integer. A friend of mine found a mistake in one of the writing sections where it seemed that two of the answers had been switched in the answer key. I always thought that the Blue Book uses real past SAT tests. If there are mistakes in the Blue Book, then can there be mistakes in the real SAT?</p>
<p>I also recently read that only the first 3 Blue Book tests were really administered. Does this mean that the rest are inaccurate?</p>
<p>If it didn’t come with the errata sheet (a colored insert with errors listed, which is common in first printings), then no, it does not have an errors. </p>
<p>Twelve is an integer, but it sounds like the question wasn’t asking for an integer, rather the number of integers. </p>
<p>The last 7 tests are not inaccurate—they just have never been given in an entirety as a test. That is why the scores provided are ranges rather than precise numbers. But many of those sections have been used on previous SATs and they were all written by College Board.</p>
<p>I have solved all blue book I don’t remember seeing this question. Anyway hes is a more detailed explanation of an integer are natural number including negatives and zeroes.</p>