Converting Time: Elapsed Time

Front

What is elapsed time?

Back

Elapsed time is the amount of time that passes from the start of an event to the end of that event.

Tags

CCSS.3.MD.A.1

Front

How do you calculate elapsed time?

Back

To calculate elapsed time, subtract the start time from the end time.

Tags

CCSS.3.MD.A.1

Front

If you go to bed at 9:15 PM and wake up at 6:15 AM, how do you find out how much sleep you got?

Back

Count the hours from 9:15 PM to 6:15 AM, which is 9 hours.

Tags

CCSS.3.MD.A.1

Front

What is the difference between AM and PM?

Back

AM refers to the time from midnight to noon, while PM refers to the time from noon to midnight.

Tags

CCSS.RI.3.3

CCSS.RI.3.5

CCSS.RI.4.3

CCSS.RI.4.5

CCSS.RI.5.5

Front

How many minutes are in one hour?

Back

There are 60 minutes in one hour.

Tags

CCSS.4.MD.A.1

Front

If it is 7:00 AM and you want to know the time 4 hours later, what time will it be?

Back

It will be 11:00 AM.

Tags

CCSS.3.MD.A.1

Front

What is the total time if you leave at 9:02 AM and return at 3:41 PM?

Back

You were out for 6 hours and 39 minutes.

Tags

CCSS.3.MD.A.1

Front

If it takes 12 minutes to change one tire, how long will it take to change 4 tires?

Back

It will take 48 minutes to change 4 tires.

Tags

CCSS.4.MD.A.2

Front

What is the formula to convert hours and minutes into just minutes?

Back

Multiply the number of hours by 60 and add the minutes.

Tags

CCSS.4.MD.A.1

Front

If you start a task at 2:30 PM and it takes 1 hour and 45 minutes, what time will you finish?

Back

You will finish at 4:15 PM.

Tags

CCSS.3.MD.A.1