Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 20 15 to 23 15 = _____ h
- 4:43 p.m. to 6:43 p.m. = _____ h
- 05 00 to 08 10 = _____ min
- 3:10 a.m. to 6:15 a.m. = _____ min
(a)
From 20 15 to 23 15 = 3 h
(b)
From 4:43 p.m. to 6:43 p.m. = 2 h
(c)
From 05 00 to 08 00 = 3 h
From 08 00 to 08 10 = 10 min
From 05 00 to 08 10 = 3 h 10 min
1 h = 60 min
3 h = 3 x 60 = 180 min
3 h 10 min = 180 + 10 = 190 min
(d)
From 3:10 a.m. to 6:10 a.m. = 3 h
From 6:10 a.m. to 6:15 a.m. = 5 min
From 3:10 a.m. to 6:15 a.m. = 3 h 5 min
1 h = 60 min
3 h = 3 x 60 = 180 min
3 h 5 min = 180 + 5 = 185 min
Answer(s): 3, 2, 190, 185