Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 9 min = _____ s
- 8 h = _____ min
- 420 s = _____ min
- 300 min = _____ h
(a)
1 min = 60 s
9 min
= 9 x 60
= 540 s
(b)
1 h = 60 min
8 h
= 8 x 60
= 480 min
(c)
1 min = 60 s
420 s
= 420 ÷ 60
= 7 min
(d)
1 h = 60 min
300 min
= 300 ÷ 60
= 5 h
Answer(s): 540, 480, 7, 5