Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 7 min = _____ s
- 5 h = _____ min
- 300 s = _____ min
- 540 min = _____ h
(a)
1 min = 60 s
7 min
= 7 x 60
= 420 s
(b)
1 h = 60 min
5 h
= 5 x 60
= 300 min
(c)
1 min = 60 s
300 s
= 300 ÷ 60
= 5 min
(d)
1 h = 60 min
540 min
= 540 ÷ 60
= 9 h
Answer(s): 420, 300, 5, 9