Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 21 53 to 23 53 = _____ h
- 1:49 p.m. to 8:49 p.m. = _____ h
- 03 00 to 07 21 = _____ min
- 4:21 a.m. to 8:24 a.m. = _____ min
(a)
From 21 53 to 23 53 = 2 h
(b)
From 1:49 p.m. to 8:49 p.m. = 7 h
(c)
From 03 00 to 07 00 = 4 h
From 07 00 to 07 21 = 21 min
From 03 00 to 07 21 = 4 h 21 min
1 h = 60 min
4 h = 4 x 60 = 240 min
4 h 21 min = 240 + 21 = 261 min
(d)
From 4:21 a.m. to 8:21 a.m. = 4 h
From 8:21 a.m. to 8:24 a.m. = 3 min
From 4:21 a.m. to 8:24 a.m. = 4 h 3 min
1 h = 60 min
4 h = 4 x 60 = 240 min
4 h 3 min = 240 + 3 = 243 min
Answer(s): 2, 7, 261, 243