Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 min 50 s = _____ s
- 4 h 5 min = _____ min
- 335 s = 5 min _____ s
- 306 min = _____ h 6 min
(a)
1 min = 60 s
1 min 50 s
= 1 x 60 + 50
= 60 + 50
= 110 s
(b)
1 h = 60 min
4 h 5 min
= 4 x 60 + 5
= 240 + 5
= 245 min
(c)
60 s = 1 min
300 s = 300 ÷ 60 = 5 min
335 s
= 300 + 35
= 5 min 35 s
(d)
60 min = 1 h
300 min = 300 ÷ 60 = 5 h
306 min
= 300 + 6
= 5 h 6 min
Answer(s): 110, 245, 35, 5