12.3 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.

Front

How do you calculate elapsed time?

Back

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

Front

What is 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

If an event starts at 2:00 p.m. and lasts for 3 hours, what time does it end?

Back

It ends at 5:00 p.m.

Front

What is the difference between hours and minutes?

Back

Hours are larger units of time (60 minutes = 1 hour), while minutes are smaller units.

Front

How many minutes are in 1 hour?

Back

There are 60 minutes in 1 hour.

Front

If a movie starts at 1:30 p.m. and lasts for 2 hours, what time does it end?

Back

It ends at 3:30 p.m.

Front

What is the time shown on a clock if the hour hand is on 3 and the minute hand is on 12?

Back

The time is 3:00.

Front

If it is 4:00 p.m. now, what time will it be in 2 hours?

Back

It will be 6:00 p.m.

Front

How do you convert minutes to hours?

Back

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