Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 min 44 s = _____ s
- 3 h 5 min = _____ min
- 145 s = 2 min _____ s
- 185 min = _____ h 5 min
(a)
1 min = 60 s
3 min 44 s
= 3 x 60 + 44
= 180 + 44
= 224 s
(b)
1 h = 60 min
3 h 5 min
= 3 x 60 + 5
= 180 + 5
= 185 min
(c)
60 s = 1 min
120 s = 120 ÷ 60 = 2 min
145 s
= 120 + 25
= 2 min 25 s
(d)
60 min = 1 h
180 min = 180 ÷ 60 = 3 h
185 min
= 180 + 5
= 3 h 5 min
Answer(s): 224, 185, 25, 3