Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 15 51 to 16 51 = _____ h
- 4:39 p.m. to 7:39 p.m. = _____ h
- 04 00 to 08 14 = _____ min
- 3:14 a.m. to 7:44 a.m. = _____ min
(a)
From 15 51 to 16 51 = 1 h
(b)
From 4:39 p.m. to 7:39 p.m. = 3 h
(c)
From 04 00 to 08 00 = 4 h
From 08 00 to 08 14 = 14 min
From 04 00 to 08 14 = 4 h 14 min
1 h = 60 min
4 h = 4 x 60 = 240 min
4 h 14 min = 240 + 14 = 254 min
(d)
From 3:14 a.m. to 7:14 a.m. = 4 h
From 7:14 a.m. to 7:44 a.m. = 30 min
From 3:14 a.m. to 7:44 a.m. = 4 h 30 min
1 h = 60 min
4 h = 4 x 60 = 240 min
4 h 30 min = 240 + 30 = 270 min
Answer(s): 1, 3, 254, 270