AI Tutor
Imagine your favorite movie says it lasts 90 minutes, but the theater schedule says it starts at 2:00 PM and ends at 3:30 PM.
How can 90 minutes and 1 hour and 30 minutes mean the exact same amount of time?

The Golden Rule of Time

Every single hour contains 60 minutes because the minute hand makes one full circle of 60 small tick marks around the clock face.
Long ago, ancient Babylonian astronomers divided the hour into 60 parts because 60 is easy to split into halves, thirds, and quarters.
So, how do we switch from whole hours into minutes without counting tick marks one by one?

Converting Hours to Minutes

To change hours into minutes, multiply by 60 because each hour gives you a fresh group of 60 minutes.
Let's find out how many minutes are in 3 hours.
Since 3×60=1803 \times 60 = 180, 3 hours is equal to 180 minutes.
What if you have hours AND extra minutes mixed together?