Let's solve each part of the problem step by step. The goal is to convert
hours and minutes into
total minutes.
We know:
- 1 hour = 60 minutes
So, for any number of hours, multiply by 60 to get minutes, then add the extra minutes.
---
(a) 1 h 20 min
= 60 min + 20 min
=
80 min
✔ Answer:
80 min
---
(b) 2 h 48 min
= 120 min + 48 min
=
168 min
✔ Answer:
168 min
---
(c) 1 h 40 min
= 60 min + 40 min
=
100 min
✔ Answer:
100 min
---
(d) 2 h 25 min
= (2 × 60) + 25 = 120 + 25 =
145 min
✔ Answer:
145 min
---
(e) 3 h 33 min
= (3 × 60) + 33 = 180 + 33 =
213 min
✔ Answer:
213 min
---
(f) 4 h 5 min
= (4 × 60) + 5 = 240 + 5 =
245 min
✔ Answer:
245 min
---
(g) 5 h 50 min
= (5 × 60) + 50 = 300 + 50 =
350 min
✔ Answer:
350 min
---
(h) 3 h 16 min
= (3 × 60) + 16 = 180 + 16 =
196 min
✔ Answer:
196 min
---
(i) 6 h 30 min
= (6 × 60) + 30 = 360 + 30 =
390 min
✔ Answer:
390 min
---
(j) 5 h 9 min
= (5 × 60) + 9 = 300 + 9 =
309 min
✔ Answer:
309 min
---
✔ Final Answers:
(a) 80 min
(b) 168 min
(c) 100 min
(d) 145 min
(e) 213 min
(f) 245 min
(g) 350 min
(h) 196 min
(i) 390 min
(j) 309 min
---
💡
Tip: Always remember:
Hours → Multiply by 60, then
add minutes.
This method works for all time conversions!
Parent Tip: Review the logic above to help your child master the concept of time conversion worksheet for.
