Elapsed Time - Start time

Front

What is elapsed time?

Back

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

Front

How do you calculate the start time if you know the finish time and the duration?

Back

To find the start time, subtract the duration from the finish time.

Front

If Maggie finished her homework at 5:35 and worked for 27 minutes, what time did she start?

Back

5:08

Front

Jayden mowed his lawn for 27 minutes and finished at 9:42 a.m. What time did he start?

Back

9:15 a.m.

Front

Sarah finished watching TV at 5:50 after watching for 1 hour and 40 minutes. What time did she start?

Back

4:10

Front

Jenny spent 35 minutes doing research and finished at 7:10 P.M. What time did she start?

Back

6:35 P.M.

Front

Amari worked on his homework for 2 hours and 50 minutes and finished at 6:30 P.M. What time did he start?

Back

3:40 P.M.

Front

What is the difference between A.M. and P.M.?

Back

A.M. refers to the time from midnight to noon, while P.M. refers to the time from noon to midnight.

Front

What is a time interval?

Back

A time interval is the duration of time between two events.

Front

How do you convert minutes to hours?

Back

To convert minutes to hours, divide the number of minutes by 60.