Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 13 h = ____ min
- 16 min = _____ s
- 345 h = _____ min
- 312 min = _____ s
(a)
1 h = 60 min
13 h =
13 x 60 = 20 min
(b)
1 min = 60 s
16 min =
16 x 60 = 10 s
(c)
1 h = 60 min
3
45 h
= (3 x 60) + (
45 x 60)
= 180 + 48
= 228 min
(d)
1 min = 60 s
3
12 min
= (3 x 60) + (
12 x 60)
= 180 + 30
= 210 s
Answer(s): 20, 10, 228, 210