Elapsed Time

The video tutorial by Mr. Added introduces the concept of elapsed time, explaining how to calculate it using two methods: counting up and counting down. The tutorial provides examples, such as a soccer practice and a bike ride, to illustrate these methods. The counting up method involves starting from the event's start time and adding time until reaching the end time, while the counting down method starts from the end time and subtracts time until reaching the start time. The video emphasizes understanding the movement of the clock's hands and using skip counting to determine elapsed time.

What is the definition of elapsed time?

• The time it takes to complete a task

• The time from the start to the end of an event

• The time shown on a clock

• The time it takes to travel a distance

If an event starts at 2:15 and ends at 3:30, how long did it last using the counting up method?

• 45 minutes

• 1 hour and 15 minutes

• 1 hour

• 1 hour and 30 minutes

In the counting up method, what is the first step to calculate elapsed time?

• Start with the biggest value

• Count the minutes first

• Count backwards

• Start with the smallest value

When using the counting down method, where do you start?

• At the current time

• At the halfway point

• At the end time

• At the start time

How many minutes are added to the hour when using the counting down method for the soccer practice example?

• 10 minutes

• 20 minutes

• 15 minutes

• 30 minutes

In the bike ride example, how many hours and minutes did the ride last?

• 1 hour and 45 minutes

• 2 hours and 35 minutes

• 2 hours and 15 minutes

• 3 hours

What is the first step in calculating elapsed time for the bike ride example using the counting up method?

• Add 30 minutes

• Add 1 hour

• Add 15 minutes

• Add 2 hours