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

If an event starts at 3:00 PM and ends at 4:30 PM, what is the elapsed time?

Back

1 hour and 30 minutes.

Front

What does it mean to add time?

Back

Adding time means to find a later time by increasing the hours and/or minutes.

Front

If you add 45 minutes to 2:15 PM, what time is it?

Back

2:15 PM + 45 minutes = 3:00 PM.

Front

What does it mean to subtract time?

Back

Subtracting time means to find an earlier time by decreasing the hours and/or minutes.

Front

If you subtract 20 minutes from 5:00 PM, what time is it?

Back

5:00 PM - 20 minutes = 4:40 PM.

Front

What is a clock face?

Back

A clock face is the part of a clock that shows the time with numbers and hands.

Front

What is the minute hand?

Back

The minute hand is the longer hand on a clock that shows the minutes.

Front

What is the hour hand?

Back

The hour hand is the shorter hand on a clock that shows the hours.