Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 7 h = ____ min
- 480 min = _____ h
- 1 h 7 min = ______ min
- 4 min = _____ s
(a)
1 h = 60 min
7 h = 7 x 60 = 420 min
(b)
1 h = 60 min
480 min = 480 ÷ 60 = 8 h
(c)
1 h = 60 min
1 h 7 min
= 1 x 60 + 7
= 67 min
(d)
1 min = 60 s
4 min = 4 x 60 = 240 s
Answer(s): 420, 8, 67, 240