Problem: Converting Between Units of Time
The task involves converting various units of time using the provided clues. Let's solve each problem step by step.
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Clues for Conversion:
1. 60 seconds = 1 minute
2. 60 minutes = 1 hour
3. 24 hours = 1 day
4. 7 days = 1 week
5. 2 weeks = 1 fortnight
6. 28 to 31 days = 1 month (average is 30.44 days)
7. 12 months = 1 year
8. 52 weeks = 1 year
9. 365 days = 1 year
10. 366 days = 1 leap year
11. 10 years = 1 decade
12. 100 years = 1 century
13. 1000 years = 1 millennium
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Solutions:
1.
120 minutes = _______ hours
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Conversion: 60 minutes = 1 hour
- Calculation: \( 120 \div 60 = 2 \)
-
Answer: 2 hours
2.
2 decades = _______ years
-
Conversion: 10 years = 1 decade
- Calculation: \( 2 \times 10 = 20 \)
-
Answer: 20 years
3.
2 years = _______ weeks
-
Conversion: 52 weeks = 1 year
- Calculation: \( 2 \times 52 = 104 \)
-
Answer: 104 weeks
4.
48 hours = _______ days
-
Conversion: 24 hours = 1 day
- Calculation: \( 48 \div 24 = 2 \)
-
Answer: 2 days
5.
90 seconds = _______ minutes
-
Conversion: 60 seconds = 1 minute
- Calculation: \( 90 \div 60 = 1.5 \)
-
Answer: 1.5 minutes
6.
3 weeks = _______ days
-
Conversion: 7 days = 1 week
- Calculation: \( 3 \times 7 = 21 \)
-
Answer: 21 days
7.
2 fortnights = _______ weeks
-
Conversion: 2 weeks = 1 fortnight
- Calculation: \( 2 \times 2 = 4 \)
-
Answer: 4 weeks
8.
80 years = _______ decades
-
Conversion: 10 years = 1 decade
- Calculation: \( 80 \div 10 = 8 \)
-
Answer: 8 decades
9.
4 centuries = _______ years
-
Conversion: 100 years = 1 century
- Calculation: \( 4 \times 100 = 400 \)
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Answer: 400 years
---
Final Answers:
1. 120 minutes =
2 hours
2. 2 decades =
20 years
3. 2 years =
104 weeks
4. 48 hours =
2 days
5. 90 seconds =
1.5 minutes
6. 3 weeks =
21 days
7. 2 fortnights =
4 weeks
8. 80 years =
8 decades
9. 4 centuries =
400 years
---
Boxed Final Answer:
\[
\boxed{2, 20, 104, 2, 1.5, 21, 4, 8, 400}
\]
Parent Tip: Review the logic above to help your child master the concept of time conversion worksheet grade.
