Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 34 h = ____ min
- 13 min = _____ s
- 123 h = _____ min
- 313 min = _____ s
(a)
1 h = 60 min
34 h =
34 x 60 = 45 min
(b)
1 min = 60 s
13 min =
13 x 60 = 20 s
(c)
1 h = 60 min
1
23 h
= (1 x 60) + (
23 x 60)
= 60 + 40
= 100 min
(d)
1 min = 60 s
3
13 min
= (3 x 60) + (
13 x 60)
= 180 + 20
= 200 s
Answer(s): 45, 20, 100, 200