If your child is in K-1 (K-2 in some schools) they will likely wear headphones and have the bulk of the test read to them. Remind your child that he has to listen to this and can't just move on, as part of the question is sometimes not on the screen. My 1st grader (now 4th) was super irritated about the slowness of the voice and just started answering at one point, and made several mistakes from not listening.

1st time out with the MAP test tends to take a long time for everyone. In theory, after that it should take kids roughly the same amount of time because they have the same amount of questions after the 1st round. For example, in winter testing, my son was seated next to a 1st grader working on counting apples on the screen. My son's score is probably (guessing!) at least 40 pts higher but they had roughly the same number of questions and both finished in about 45 min.