Let’s solve each problem step by step using the rules given:
> Remember:
> - 60 seconds = 1 minute
> - 60 minutes = 1 hour
> - 24 hours = 1 day
---
Convert hours and minutes into minutes:
1.
1 hour 30 minutes
→ 1 hour = 60 minutes → 60 + 30 =
90 minutes
2.
1 hour 45 minutes
→ 60 + 45 =
105 minutes
3.
2 hours
→ 2 × 60 =
120 minutes
4.
3 hours 30 minutes
→ 3 × 60 = 180 → 180 + 30 =
210 minutes
---
Convert seconds into minutes and seconds:
We divide total seconds by 60. The whole number is minutes, remainder is seconds.
5.
120 seconds
→ 120 ÷ 60 = 2 →
2 minutes 0 seconds (or just “2 minutes”)
But since it says “minutes and seconds”, we write:
2 minutes 0 seconds
Wait — let’s check if they want format like “X minutes Y seconds”. Yes.
Actually, for 120: exactly 2 minutes → so
2 minutes 0 seconds
But maybe they accept “2 minutes” — but to be safe, follow instruction: “minutes and seconds”
So:
5. 120 60 = 2 R 0 →
2 minutes 0 seconds
6.
200 seconds
→ 200 ÷ 60 = 3 with remainder 20 → because 3×60=180, 200-180=20
→
3 minutes 20 seconds
7.
90 seconds
→ 90 ÷ 60 = 1 R 30 →
1 minute 30 seconds
8.
600 seconds
→ 600 ÷ 60 = 10 →
10 minutes 0 seconds
---
Convert minutes into hours and minutes:
Divide by 60. Whole number = hours, remainder = minutes.
9.
70 minutes
→ 70 ÷ 60 = 1 R 10 →
1 hour 10 minutes
10.
100 minutes
→ 100 ÷ 60 = 1 R 40 →
1 hour 40 minutes
11.
90 minutes
→ 90 ÷ 60 = 1 R 30 →
1 hour 30 minutes
12.
240 minutes
→ 240 ÷ 60 = 4 →
4 hours 0 minutes (or just “4 hours”)
Again, since it says “hours and minutes”, we’ll write:
4 hours 0 minutes
---
Convert days into hours:
Multiply days by 24.
13.
2 days → 2 × 24 =
48 hours
14.
20 days → 20 × 24 = let’s compute:
20 × 20 = 400, 20 × 4 = 80 → 400 + 80 =
480 hours
Or: 2 × 24 = 48, so 20 × 24 = 480 → yes.
15.
3 days → 3 × 24 =
72 hours
16.
5 days → 5 × 24 =
120 hours
---
Now, double-check all answers:
1. 90
✔
2. 105
✔
3. 120
✔
4. 210
✔
5. 2 min 0 sec
✔
6. 3 min 20 sec
✔
7. 1 min 30 sec
✔
8. 10 min 0 sec
✔
9. 1 hr 10 min
✔
10. 1 hr 40 min
✔
11. 1 hr 30 min
✔
12. 4 hr 0 min
✔
13. 48
✔
14. 480
✔
15. 72
✔
16. 120
✔
All correct.
Final Answer:
1. 90
2. 105
3. 120
4. 210
5. 2 minutes 0 seconds
6. 3 minutes 20 seconds
7. 1 minute 30 seconds
8. 10 minutes 0 seconds
9. 1 hour 10 minutes
10. 1 hour 40 minutes
11. 1 hour 30 minutes
12. 4 hours 0 minutes
13. 48
14. 480
15. 72
16. 120
Parent Tip: Review the logic above to help your child master the concept of convert hours to minutes worksheet.
