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Measuring time in seconds | Year 3 Mathematics PDF Download
Comparing Durations of Time
- Let's explore how we measure and compare durations of time in seconds.
- Remember, there are 60 minutes in 1 hour and 60 seconds in 1 minute.
- Consider these questions:
- What can you do in 1 minute?
- What can you do in 30 seconds?
- What can you do in 1 second?
- Accurate time measurement in seconds is crucial. We must also consider how to record time for activities exceeding 60 seconds or 1 minute.
- Let's compare these time amounts:
- 65 seconds is equivalent to 1 minute and 5 seconds.
- 90 seconds is equivalent to 1 minute and 30 seconds.
- 187 seconds is equivalent to 3 minutes and 7 seconds.
Examples
Example 1: Comparing time durations in minutes and seconds
Two friends run a lap of a playground. It takes Poppy 168 seconds to run all the way round. Imran runs round in 2 minutes, 58 seconds.
Who was quickest?
Sol: In order to work this out, we need to change Imran's time into seconds, so we can compare it with Poppy's time.
Imran's time: 2 minutes, 58 seconds = 178 seconds
Remember, 1 minute = 60 seconds, so 2 minutes is 120 seconds.
120 + 58 = 178.
Poppy's time: 168 seconds
Poppy was therefore quickest, by 10 seconds.
Example 2: Working out amounts in seconds
How many seconds are there in 5 minutes, 37 seconds?
Sol: You can work this out by counting up in lots of 60 seconds, to represent whole minutes, and then adding on the extra seconds.
60 + 60 + 60 + 60 + 60 = 300 seconds
300 + 37 = 337 seconds
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FAQs on Measuring time in seconds - Year 3 Mathematics
| 1. How can durations of time be compared? |  |
Ans. Durations of time can be compared by converting them into a common unit of measurement, such as seconds, and then comparing the numerical values.
| 2. What is a common unit of measurement used to compare durations of time? | |
Ans. Seconds are a common unit of measurement used to compare durations of time, as they provide a precise and easily understandable way to compare different lengths of time.
| 3. Why is it important to compare durations of time in a consistent unit of measurement? | |
Ans. It is important to compare durations of time in a consistent unit of measurement to accurately assess the differences between them and make meaningful comparisons.
| 4. Can durations of time be compared using different units of measurement? | |
Ans. Yes, durations of time can be compared using different units of measurement, but it is important to convert them into a common unit to ensure accurate comparisons.
| 5. How can the concept of comparing durations of time be applied in real-life situations? | |
Ans. Comparing durations of time can be applied in various real-life situations, such as calculating travel times, scheduling events, or measuring the efficiency of processes.
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Dec 22, 2024 Last updated |
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