Calculating Elapsed Time Concepts

The video tutorial teaches students how to calculate elapsed time and estimate time duration. It covers the definition of elapsed time, explains time components, and demonstrates two methods for calculating elapsed time: using a number line and subtraction. The tutorial includes practical examples and exercises to reinforce learning.

What is the definition of elapsed time?

• The time taken from the end to the start

• The time taken from the start to the end

• The time taken to complete a task

• The time taken to prepare for a task

What does 'AM' stand for?

• After Midnight

• Ante Meridian

• Ante Midnight

• After Meridian

How many minutes are there in one hour?

• 30 minutes

• 60 minutes

• 45 minutes

• 90 minutes

What is the first step in using the number line method to find elapsed time?

• Skip every 15 minutes

• Start from the start time

• Skip every 10 minutes

• Start from the end time

When using subtraction to find elapsed time, what should you do if the minutes in the end time are smaller than the start time?

• Borrow an hour from the start time

• Borrow an hour from the end time

• Subtract an hour from the start time

• Add an hour to the end time

How do you estimate elapsed time?

• By rounding off the hours

• By rounding off the minutes

• By rounding off the days

• By rounding off the seconds

What is the estimated elapsed time if the start time is 7:32 AM and the end time is 8:25 AM?

• 30 minutes

• 1 hour and 30 minutes

• 45 minutes

• 1 hour

In the example of Chris working as a tutor, how many hours does he work per day?

• 5 hours

• 3 hours

• 2 hours

• 4 hours

What should you do if the start time is AM and the end time is PM when calculating elapsed time?

• Subtract 12 hours from the end time

• Add 12 hours to the end time

• Add 12 hours to the start time

• Subtract 12 hours from the start time

What is the total elapsed time if the start time is 10 AM and the end time is 1 PM?

• 4 hours

• 5 hours

• 2 hours

• 3 hours