Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 19 43 to 23 43 = _____ h
- 1:37 p.m. to 5:37 p.m. = _____ h
- 03 00 to 07 36 = _____ min
- 4:36 a.m. to 7:46 a.m. = _____ min
(a)
From 19 43 to 23 43 = 4 h
(b)
From 1:37 p.m. to 5:37 p.m. = 4 h
(c)
From 03 00 to 07 00 = 4 h
From 07 00 to 07 36 = 36 min
From 03 00 to 07 36 = 4 h 36 min
1 h = 60 min
4 h = 4 x 60 = 240 min
4 h 36 min = 240 + 36 = 276 min
(d)
From 4:36 a.m. to 7:36 a.m. = 3 h
From 7:36 a.m. to 7:46 a.m. = 10 min
From 4:36 a.m. to 7:46 a.m. = 3 h 10 min
1 h = 60 min
3 h = 3 x 60 = 180 min
3 h 10 min = 180 + 10 = 190 min
Answer(s): 4, 4, 276, 190