Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 min 41 s = _____ s
- 4 h 25 min = _____ min
- 250 s = 4 min _____ s
- 363 min = _____ h 3 min
(a)
1 min = 60 s
2 min 41 s
= 2 x 60 + 41
= 120 + 41
= 161 s
(b)
1 h = 60 min
4 h 25 min
= 4 x 60 + 25
= 240 + 25
= 265 min
(c)
60 s = 1 min
240 s = 240 ÷ 60 = 4 min
250 s
= 240 + 10
= 4 min 10 s
(d)
60 min = 1 h
360 min = 360 ÷ 60 = 6 h
363 min
= 360 + 3
= 6 h 3 min
Answer(s): 161, 265, 10, 6