Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 14 h = ____ min
- 12 min = _____ s
- 235 h = _____ min
- 234 min = _____ s
(a)
1 h = 60 min
14 h =
14 x 60 = 15 min
(b)
1 min = 60 s
12 min =
12 x 60 = 30 s
(c)
1 h = 60 min
2
35 h
= (2 x 60) + (
35 x 60)
= 120 + 36
= 156 min
(d)
1 min = 60 s
2
34 min
= (2 x 60) + (
34 x 60)
= 120 + 45
= 165 s
Answer(s): 15, 30, 156, 165