On the clock, the minute hand rotates one circle, the hour hand rotates () degrees, the minute hand rotates three circles, the hour hand rotates () degrees

On the clock, the minute hand rotates one circle, the hour hand rotates () degrees, the minute hand rotates three circles, the hour hand rotates () degrees

When the minute hand rotates for one circle, an hour has passed. For the hour hand, there are 12 hours on the clock face, and the circumference angle is 360 degrees, so the 12 hours should be divided into the circumference angle averagely. Then, in the past hour, the hour hand moves 360 degrees △ 12 = 30 degrees. Then, when the minute hand rotates for three circles, in the past three hours, the hour hand moves three times of the rotation degree in the past one hour, that is, 30 degrees × 3 = 90 degrees
The answers are: 30, 90