Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8 min 38 s = _____ s
- 3 h 20 min = _____ min
- 185 s = 3 min _____ s
- 304 min = _____ h 4 min
(a)
1 min = 60 s
8 min 38 s
= 8 x 60 + 38
= 480 + 38
= 518 s
(b)
1 h = 60 min
3 h 20 min
= 3 x 60 + 20
= 180 + 20
= 200 min
(c)
60 s = 1 min
180 s = 180 ÷ 60 = 3 min
185 s
= 180 + 5
= 3 min 5 s
(d)
60 min = 1 h
300 min = 300 ÷ 60 = 5 h
304 min
= 300 + 4
= 5 h 4 min
Answer(s): 518, 200, 5, 5