Converting Units of Time

Site: Saylor Academy
Course: GKT101: General Knowledge for Teachers – Math
Book: Converting Units of Time
Printed by: Guest user
Date: Saturday, May 18, 2024, 8:08 AM

Description

Watch this lecture series and complete the interactive exercises to practice converting measurements of time to different units.

Time word problem: travel time

Time word problem: Susan's break

Practice

    

Convert to smaller units (sec, min, & hr) - Questions

1. Compare using  > , < , or =.

9 hours ______ ( > , < , =) 450 minutes

Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    

2. Complete the table to show equivalent measurements in minutes and seconds.

Minutes Seconds
5  
9  
20  


Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    


3. Convert.

________ minutes =\frac{7}{10} hour

Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    


4. Convert.

______  minutes 14 hours
Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    


5. Convert.

2 hours 45 minutes = _______ minutes

Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    


6. Compare using  > , < , or =.

75 minutes ______ ( > , < , =) 7 hours

Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    


7. Complete the table to show equivalent measurements in hours and minutes.

Hours Minutes
4  
7  
13  


Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    

Convert to smaller units (sec, min, & hr) - Answers

1. 9 \text { hours } > 450 \text { minutes }

2. 

Minutes Seconds
5 300
9 540
20 1,200


3. 42 \text { minutes }=\frac{7}{10} \text { hour } 

4. 840 \text { minutes }=14 \text { hours }

5. 2 \text { hours } 45 \text { minutes }=165 \text { minutes }

6. 75 \text { minutes } < 7 \text { hours }

7.

Hours Minutes
4 240
7  420
13  780

Time conversion word problems - Questions

1. Amanda is cooking a turkey for dinner. The recipe says that the turkey should cook for 1 \frac{1}{2} hours. She has been cooking the turkey for 25 minutes.

According to the recipe, how many more minutes does the turkey need to cook?

______ minutes

Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    


2. It takes Carrie 58 minutes to get home.

If Carrie leaves for home at 1: 32, what time will she arrive?

_______:_______

Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    


3. Ajay is allowed to watch 2 hours of television on Saturdays. Each episode of his favorite show lasts 30 minutes.

How many episodes may he watch?

_______ episodes

Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    


4. Duane is making a casserole for dinner. He has been cooking the casserole for 1 hour and 48 minutes. The casserole needs to cook for 47 more minutes.

How many minutes does the casserole cook in total?

_______ minutes

Conversions    
1 kilometer = 1,000 meters 1 minute =60 seconds 1 liter =1,000 milliliters
1 meter =100 centimeters 1 hour =60 minutes 1 kilogram =1,000 grams
1 meter = 1,000 millimeters   1 gram =1,000 milligrams
1 centimeter =10 millimeters    

Time conversion word problems - Answers

1. Amanda has to cook the turkey for 65 minutes more.

2. Carrie will arrive home at 2:30.

3. Ajay can watch 4 episodes of his favorite show.

4. The casserole needs to cook for a total of 155 minutes.