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Third/Telling Time

Elapsed Time: Simple Word Problems

Solve how much time has passed in everyday scenarios.
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Practice Questions

  1. If you start reading at 3:00 and finish at 3:30, how many minutes did you read?
    Show answer

    (B) 30 minutes

  2. You begin your homework at 4:15 and finish at 4:45. How long did it take?
    Show answer

    (B) 30 minutes

  3. You play outside from 2:00 to 2:20. How many minutes did you play?
    Show answer

    (B) 20 minutes

  4. You watch TV from 5:00 to 5:45. How long did you watch?
    Show answer

    (A) 45 minutes

  5. You eat lunch from 12:00 to 12:30. How long did lunch take?
    Show answer

    (B) 30 minutes

Quick Tip
Subtract the start time from the end time to find how much time has passed.
Teacher Resources
Teaching Notes

Introduce elapsed time using real-world scenarios. Encourage students to use number lines or analog clocks as visual aids to track time.

Vocabulary
Elapsed Time: The amount of time that has passed.
Interval: A period of time between two events.
Common Mistakes
  • Miscounting minutes or hours on a clock face or number line.
  • Confusing the starting and ending times in the problem.
  • Errors in basic addition or subtraction when calculating intervals.
Differentiation
SupportUse manipulatives like geared clocks or pre-drawn number lines.
ChallengeIntroduce problems that involve time crossing the hour mark.
Discussion Questions
  • When do you use elapsed time in your daily life?
  • How does a number line help solve time problems?
  • What if an event starts in the morning and ends after lunch?
  • Can you describe an activity that lasts exactly one hour?
Extension Activities
  • Calculate time to next hour.
  • Find time difference.
  • Schedule a pretend day.
Parent Tip

Ask: 'If we leave at 2 PM and arrive at 4 PM, how long did we travel?'

Learning Path
Skill Cluster

Measurement and Data

Estimated Time

15 minutes

Skills Practiced
Calculate elapsed time hoursCalculate elapsed time minutes