Free Grade 3 Elapsed Time Lessons
Free Grade 3 lessons for Elapsed Time: 12 real questions with a full answer key and worked solutions. There are 60 minutes in an hour, so time does not work like ordinary decimals. Add hours and minutes separately and carry 1 hour each time minutes reach 60.
Free
Core
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain elapsed time
Explain elapsed time accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate elapsed time
Calculate elapsed time accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare elapsed time
Compare elapsed time accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify elapsed time
Justify elapsed time accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Elapsed Time works
There are 60 minutes in an hour, so time does not work like ordinary decimals. Add hours and minutes separately and carry 1 hour each time minutes reach 60.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.A film starts at 14:30 and lasts 45 min. When does it end?[1]
- 2.A film starts at 15:20 and lasts 50 min. When does it end?[1]
- 3.A film starts at 8:50 and lasts 20 min. When does it end?[1]
- 4.A film starts at 8:40 and lasts 15 min. When does it end?[1]
- 5.A film starts at 15:30 and lasts 2 h 35 min. When does it end?[2]
- 6.A film starts at 12:45 and lasts 3 h 10 min. When does it end?[2]
- 7.A film starts at 11:55 and lasts 1 h 15 min. When does it end?[2]
- 8.A film starts at 13:55 and lasts 3 h 35 min. When does it end?[2]
- 9.A film starts at 9:55 and lasts 3 h 10 min. When does it end?[3]
- 10.A film starts at 13:10 and lasts 2 h 15 min. When does it end?[3]
- 11.A film starts at 15:25 and lasts 1 h 15 min. When does it end?[3]
- 12.A film starts at 12:00 and lasts 2 h 55 min. When does it end?[3]
Show answers and working
1. 15:15
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 15:15.
2. 16:10
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 16:10.
3. 9:10
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 9:10.
4. 8:55
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 8:55.
5. 18:05
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 18:05.
6. 15:55
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 15:55.
7. 13:10
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 13:10.
8. 17:30
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 17:30.
9. 13:05
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 13:05.
10. 15:25
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 15:25.
11. 16:40
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 16:40.
12. 14:55
Add the hours first, then the minutes. If minutes pass 60, carry 1 hour. Ends at 14:55.
Worked examples
A film starts at 8:10 and lasts 35 min. When does it end?
- Add the hours first, then the minutes.
- If minutes pass 60, carry 1 hour.
- Ends at 8:45.
- Answer: 8:45
A film starts at 12:20 and lasts 1 h 50 min. When does it end?
- Add the hours first, then the minutes.
- If minutes pass 60, carry 1 hour.
- Ends at 14:10.
- Answer: 14:10
A film starts at 13:25 and lasts 2 h 50 min. When does it end?
- Add the hours first, then the minutes.
- If minutes pass 60, carry 1 hour.
- Ends at 16:15.
- Answer: 16:15
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Treats 1:50 + 20 min as 1:70.
Correction: 60 minutes make an hour: 1:70 is 2:10.
Uses a calculator and gets decimal hours.
Correction: Count on in hours, then minutes, on a timeline.
Teacher tips
- · Use a number line split into hours for durations.
Parent tips
- · Ask how long until dinner from the current time.
Real-life applications
- · Reading timetables, planning a day out.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
Every free resource for Elapsed Time
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Frequently asked
- Is this Grade 3 Elapsed Time lesson really free?
- Yes. Every lessons on FreeMathWorksheet is free to use, print and share — no account, no paywall and no watermark.
- What should a learner already know before this?
- Start with Timetables, Reading Clocks, Units. Each one has its own free lesson, worksheet and quiz.
- How is the lesson sequenced?
- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
- What comes next after Elapsed Time?
- Move on to Units, Money, which build directly on this idea.
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