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40
Count to the next hour.
Class 3 · English Medium · Pearson Edexcel · Mathematics
Time and duration
Explore time and duration with an example and your own answers.
About this lesson and its coverage
Original Kidemy foundation practice · Read the example, write your answers, then check. This starter is shared across class versions; it is not a complete board-specific lesson or course.
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Learn the idea
Find duration by counting through useful clock times. There are 60 minutes in one hour.
Worked example
From 2:40 to 3:00 is 20 minutes; from 3:00 to 3:15 is 15 more. Total: 35 minutes.
- Read the example and explain which rule or evidence it uses.
- Try each task yourself, then compare the answer and its reason.
Your written practice
Show your working on paper. Check your answer, then choose Next.
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120
Each hour has sixty minutes.
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9:35
Add twenty-five minutes to 9:10.
Take it further
Apply the idea in a new situation and explain your method. Open writing needs a guardian or teacher to review it.
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35
Count fifteen minutes to nine, then twenty more.
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12:15
Twenty minutes reaches twelve, then fifteen more.
Write in your own words. A guardian or teacher should review this response.
Show model answer and explanation
There are ten minutes to 3:00 and ten more to 3:10. Clock minutes run to sixty, not one hundred.
Explain the hour boundary.
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