Exploring Elapsed Time on a Number Line

What is the primary unit of time discussed for representing elapsed time on a number line?

• Minutes

• Days

• Seconds

• Weeks

Tags

CCSS.2.MD.A.3

How is adding time on a number line similar to place value?

• Both are unrelated

• Both use subtraction

• Both involve division

• Both use addition in segments

What strategy is used to calculate elapsed time on a number line?

• Subtraction of times

• Division of time

• Multiplication of intervals

• Addition of intervals

Tags

CCSS.3.MD.A.1

If an event starts at 7:24 and lasts 43 minutes, what is the ending time?

• 8:00

• 7:67

• 8:07

• 7:50

Tags

CCSS.3.MD.A.1

How do we handle the transition when minutes added exceed 60?

• Start a new hour

• Reset to 0

• Subtract 60

• Ignore the excess

Tags

CCSS.3.MD.A.1

What is the resulting time when adding 1 hour and 36 minutes to 7:24?

• 9:00

• 8:60

• 8:50

• 8:30

Tags

CCSS.3.MD.A.1

What is the new time when 36 minutes are added to 8:24?

• 9:00

• 8:60

• 8:50

• 9:10

Tags

CCSS.3.MD.A.1

When adding minutes and transitioning to a new hour, what minute count signifies a new hour?

• 60

• 45

• 50

• 55

Tags

CCSS.3.MD.A.1

How many hours are between 9:14 and 1:42?

• 3 hours

• 5 hours

• 4 hours

• 6 hours

Tags

CCSS.3.MD.A.1

What is the total time elapsed from 9:14 to 1:42?

• 5 hours

• 3 hours 50 minutes

• 4 hours 30 minutes

• 4 hours 28 minutes

Tags

CCSS.3.MD.A.1