SEC regular-season champion Gators (29-8), who lost in a regional final for the third straight year.
Stauskas hit all six of his 3-point attempts, including consecutive makes from the left corner for to give Michigan a 41-17 lead.
Sophomore Trey Burke, the Big Ten player of the year, added 15 points for Michigan. Mitch McGary, another freshman, had 11 points and nine rebounds. He scored eight in the opening 13-0 run.
Kenny Boynton and Will Yeguette had 13 points each for Florida.
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