Lesson 21 PSSA Coach

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 find the start time of an event if you know the end time and duration?

Back

Subtract the duration from the end time to find the start time.

Front

What does the hour hand on a clock indicate?

Back

The hour hand shows the current hour.

Front

What does the minute hand on a clock indicate?

Back

The minute hand shows the current minutes past the hour.

Front

If a clock shows 3:09, where are the hour and minute hands?

Back

The hour hand is between 3 and 4, and the minute hand is between 1 and 2.

Front

How do you calculate the time you need to leave to arrive on time?

Back

Subtract the travel time from the time you need to arrive.

Front

What is the duration of 25 minutes after 7:30 AM?

Back

7:55 AM.

Front

If a class lasts 40 minutes and ends at 12:30, what time does it start?

Back

12:30 - 40 minutes = 11:50.

Front

What is the time difference between 8:15 and 8:00?

Back

15 minutes.

Front

If you wake up at 7:30 and take 25 minutes to get ready, what time do you leave?

Back

7:55 AM.