Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 12 h = ____ min
- 12 min = _____ s
- 2112 h = _____ min
- 156 min = _____ s
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
(b)
1 min = 60 s
12 min =
12 x 60 = 30 s
(c)
1 h = 60 min
2
112 h
= (2 x 60) + (
112 x 60)
= 120 + 5
= 125 min
(d)
1 min = 60 s
1
56 min
= (1 x 60) + (
56 x 60)
= 60 + 50
= 110 s
Answer(s): 30, 30, 125, 110