Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 21 38 to 23 38 = _____ h
- 1:13 p.m. to 8:13 p.m. = _____ h
- 02 00 to 05 13 = _____ min
- 2:13 a.m. to 6:24 a.m. = _____ min
(a)
From 21 38 to 23 38 = 2 h
(b)
From 1:13 p.m. to 8:13 p.m. = 7 h
(c)
From 02 00 to 05 00 = 3 h
From 05 00 to 05 13 = 13 min
From 02 00 to 05 13 = 3 h 13 min
1 h = 60 min
3 h = 3 x 60 = 180 min
3 h 13 min = 180 + 13 = 193 min
(d)
From 2:13 a.m. to 6:13 a.m. = 4 h
From 6:13 a.m. to 6:24 a.m. = 11 min
From 2:13 a.m. to 6:24 a.m. = 4 h 11 min
1 h = 60 min
4 h = 4 x 60 = 240 min
4 h 11 min = 240 + 11 = 251 min
Answer(s): 2, 7, 193, 251