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 between two times?

Back

To calculate elapsed time, subtract the start time from the end time. If the end time is on the next day, adjust accordingly.

Tags

CCSS.3.MD.A.1

Front

What is the difference between hours and minutes in time calculation?

Back

There are 60 minutes in an hour. When calculating time, convert hours to minutes if necessary for accurate subtraction.

Tags

CCSS.3.MD.A.1

Front

If an event starts at 2:15 PM and ends at 4:45 PM, how do you find the elapsed time?

Back

Subtract the start time from the end time: 4:45 PM - 2:15 PM = 2 hours and 30 minutes.

Tags

CCSS.3.MD.A.1

Front

What is the significance of AM and PM in time?

Back

AM (Ante Meridiem) refers to the time from midnight to noon, while PM (Post Meridiem) refers to the time from noon to midnight.

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

CCSS.W.2.3

CCSS.W.3.3C

Front

How do you convert minutes into hours?

Back

To convert minutes into hours, divide the number of minutes by 60. For example, 120 minutes is 2 hours.

Tags

CCSS.4.MD.A.1

Front

What is the process for adding time durations?

Back

To add time durations, add the hours and minutes separately, then convert any excess minutes into hours if necessary.

Tags

CCSS.3.MD.A.1

Front

If a class starts at 9:00 AM and lasts for 1 hour and 45 minutes, what time does it end?

Back

The class ends at 10:45 AM.

Tags

CCSS.3.MD.A.1

Front

How do you determine the end time if you know the start time and duration?

Back

Add the duration to the start time. For example, if the start time is 3:00 PM and the duration is 2 hours, the end time is 5:00 PM.

Tags

CCSS.3.MD.A.1

Front

What is the elapsed time from 11:30 AM to 1:00 PM?

Back

The elapsed time is 1 hour and 30 minutes.

Tags

CCSS.3.MD.A.1