Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 4 h = ____ min
- 420 min = _____ h
- 1 h 47 min = ______ min
- 3 min = _____ s
(a)
1 h = 60 min
4 h = 4 x 60 = 240 min
(b)
1 h = 60 min
420 min = 420 ÷ 60 = 7 h
(c)
1 h = 60 min
1 h 47 min
= 1 x 60 + 47
= 107 min
(d)
1 min = 60 s
3 min = 3 x 60 = 180 s
Answer(s): 240, 7, 107, 180