Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 min = _____ s
- 7 h = _____ min
- 480 s = _____ min
- 420 min = _____ h
(a)
1 min = 60 s
3 min
= 3 x 60
= 180 s
(b)
1 h = 60 min
7 h
= 7 x 60
= 420 min
(c)
1 min = 60 s
480 s
= 480 ÷ 60
= 8 min
(d)
1 h = 60 min
420 min
= 420 ÷ 60
= 7 h
Answer(s): 180, 420, 8, 7