2。 6 0 30 60 90 120
3. Solution: The minute hand turns 360 degrees and the hour hand turns 30 degrees.
That is, the minute hand rotates 12 degrees, and the hour hand rotates 1 degree.
At four o'clock, the difference between the hour hand and the minute hand is 120 degrees.
So the minute hand rotates 130 and 1 1. 10 degrees (the process cannot be written here ...)