Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 112 h = _____ min
- 9 250 m = _____ m (Give the answer in decimal.)
- 3 15 km = _____ m
- 5 14 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
3
112 h = 180 + 5 = 185 min
(b)
250 m =
4100 m = 0.04 m
9 m + 0.04 m = 9.04 m
(c)
1 km = 1000 m
3 km = 3000 m
15 km =
15 x 1000 = 200 m
3
15 km
= 3000 + 200
= 3200 m
(d)
1 kg = 1000 g
5 kg = 5000 g
14 kg =
14 x 1000 = 250 g
5
14 kg
= 5000 + 250
= 5250 g
Answer(s): 185, 9.04, 3200, 5250