To solve the problem of converting units of time, we need to use the following basic conversion factors:
1.
1 hour = 60 minutes
2.
1 minute = 60 seconds
3.
1 day = 24 hours
Let's solve each problem step by step.
---
1. 9 hours 30 minutes = _______ minutes
- Convert hours to minutes: \( 9 \text{ hours} \times 60 = 540 \text{ minutes} \)
- Add the extra minutes: \( 540 + 30 = 570 \text{ minutes} \)
Answer: \( 570 \) minutes
---
2. 7 minutes 45 seconds = _______ seconds
- Convert minutes to seconds: \( 7 \text{ minutes} \times 60 = 420 \text{ seconds} \)
- Add the extra seconds: \( 420 + 45 = 465 \text{ seconds} \)
Answer: \( 465 \) seconds
---
3. 9 days 20 hours = _______ hours
- Convert days to hours: \( 9 \text{ days} \times 24 = 216 \text{ hours} \)
- Add the extra hours: \( 216 + 20 = 236 \text{ hours} \)
Answer: \( 236 \) hours
---
4. 10 minutes 27 seconds = _______ seconds
- Convert minutes to seconds: \( 10 \text{ minutes} \times 60 = 600 \text{ seconds} \)
- Add the extra seconds: \( 600 + 27 = 627 \text{ seconds} \)
Answer: \( 627 \) seconds
---
5. 13 days 19 hours = _______ hours
- Convert days to hours: \( 13 \text{ days} \times 24 = 312 \text{ hours} \)
- Add the extra hours: \( 312 + 19 = 331 \text{ hours} \)
Answer: \( 331 \) hours
---
6. 6 hours 5 minutes = _______ minutes
- Convert hours to minutes: \( 6 \text{ hours} \times 60 = 360 \text{ minutes} \)
- Add the extra minutes: \( 360 + 5 = 365 \text{ minutes} \)
Answer: \( 365 \) minutes
---
7. 10 hours 30 minutes = _______ minutes
- Convert hours to minutes: \( 10 \text{ hours} \times 60 = 600 \text{ minutes} \)
- Add the extra minutes: \( 600 + 30 = 630 \text{ minutes} \)
Answer: \( 630 \) minutes
---
8. 6 minutes 15 seconds = _______ seconds
- Convert minutes to seconds: \( 6 \text{ minutes} \times 60 = 360 \text{ seconds} \)
- Add the extra seconds: \( 360 + 15 = 375 \text{ seconds} \)
Answer: \( 375 \) seconds
---
9. 4 days 20 hours = _______ hours
- Convert days to hours: \( 4 \text{ days} \times 24 = 96 \text{ hours} \)
- Add the extra hours: \( 96 + 20 = 116 \text{ hours} \)
Answer: \( 116 \) hours
---
10. 3 minutes 45 seconds = _______ seconds
- Convert minutes to seconds: \( 3 \text{ minutes} \times 60 = 180 \text{ seconds} \)
- Add the extra seconds: \( 180 + 45 = 225 \text{ seconds} \)
Answer: \( 225 \) seconds
---
11. 20 days 21 hours = _______ hours
- Convert days to hours: \( 20 \text{ days} \times 24 = 480 \text{ hours} \)
- Add the extra hours: \( 480 + 21 = 501 \text{ hours} \)
Answer: \( 501 \) hours
---
12. 12 hours 5 minutes = _______ minutes
- Convert hours to minutes: \( 12 \text{ hours} \times 60 = 720 \text{ minutes} \)
- Add the extra minutes: \( 720 + 5 = 725 \text{ minutes} \)
Answer: \( 725 \) minutes
---
Final Answers:
\[
\boxed{
\begin{aligned}
&570, 465, 236, 627, 331, 365, 630, 375, 116, 225, 501, 725
\end{aligned}
}
\]
Parent Tip: Review the logic above to help your child master the concept of time conversion worksheet for.
