Welcome!
Two thoughts:
1. Since she's already figured out that getting them wrong ends the test, she might also want to know that the next time she takes this test, it will start her off based on what she did last time, so if she blows off the test at the end, it will start her with lots of easy questions, which will make the test longer than it needs to be. If she does her best, especially on the fall test, the next time the first questions should be harder, so she won't have to do as many problems, even when doing her best. (The fall test will almost always be long, because it's the first one of the year, and schools often reset the start point over the summer.)
2. Is this the MAP MPG (grade K-2) test, or the MAP 2-5 (grade 2-5) test? If she's scoring this high, she should be on the 2-5 test.
https://www.nwea.org/content/uploads/2015/01/MPG-to-MAP-Transition-Guidance-Document-JAN15.pdfAnd one more thought: is she the last one finishing just because of how high she goes on the test, or is she often the last to finish tasks (even non-academic ones)? Because if the latter, then there may be other factors that could use examination.
