There are 510 students at a school. If each classroom holds 30 students, how many classrooms are needed at the school?

To solve this, you would divide the total number of students (510) by the number of students that fit in each classroom (30). This gives you 510 ÷ 30 = 17 classrooms. However, since classroom spaces can't be a fraction, you'll need to round up to 17 classrooms, even if the last one isn't filled to capacity. Remember, always double-check your division results to avoid any pesky mistakes; rounding up is crucial to ensure every student has a space to learn!