Hour

An hour is a unit of time equal to 60 minutes, or 3,600 seconds. It is commonly used to measure the duration of events or the time of day. Understanding how to convert between hours, minutes, and seconds, as well as how to perform operations involving hours, is an important skill in math.

Converting Between Hours, Minutes, and Seconds

To convert between hours, minutes, and seconds, you can use the following conversion factors:

1 hour = 60 minutes
1 minute = 60 seconds

When converting from hours to minutes or seconds, you can multiply by the appropriate conversion factor. For example, to convert 2 hours to minutes, you would multiply by 60: 2 hours * 60 minutes/hour = 120 minutes.

When converting from minutes to hours or seconds, you can use division. For example, to convert 180 minutes to hours, you would divide by 60: 180 minutes / 60 minutes/hour = 3 hours.

Operations Involving Hours

When performing operations involving hours, it is important to keep track of units and carry out the appropriate conversions if necessary. For addition and subtraction, simply add or subtract the hours together. For example, 3 hours + 4 hours = 7 hours.

For multiplication and division, you may need to convert between hours and other units of time. For example, if you want to find out how many minutes are in 5 hours, you would multiply by the conversion factor: 5 hours * 60 minutes/hour = 300 minutes.

Study Guide

Here are some key points to remember when studying the topic of hours:

1 hour = 60 minutes = 3,600 seconds
Converting between hours, minutes, and seconds involves multiplication and division by the appropriate conversion factors
When performing operations involving hours, pay attention to units and perform conversions if necessary
Practice converting between hours, minutes, and seconds, as well as solving problems involving operations with hours

By understanding the concept of hours and practicing the conversion and operation skills, you will be well-prepared to tackle problems involving time in math.