Out of 804 senior high school students, 75% passed their exams and so got their degree. The rest failed. How many didn't pass their exams?
Find the number of students who got their degree by multiplying: 804 students * 75% = <<804*75*.01=603>>603 students.
Then find the number of students who didn't pass their exams by subtracting this number from the total: 804 students - 603 students = <<804-603=201>>201 students.
#### 201