Find the following values without a calculator.
Give your answers in this manner. (Eg 00 10, 15 00, 16 00, 21 00)
- 12 min before 21 33 h = ________ h
- 6 h before 09 57 h = ________ h
- 4 h 10 min before 19 00 h = ________ h
- 2 h 19 min before 19 46 h = ________ h
(a)
12 min before 21 33 h = 21 21 h
(b)
6 h before 09 57 h = 03 57 h
(c)
4 h 10 min before 19 00 h = 14 50 h
(d)
2 h 19 min before 19 46 h = 17 27 h
Answer(s): 21 21, 03 57, 14 50, 17 27