Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 112 h = _____ min
- 9 125 m = _____ m (Give the answer in decimal.)
- 2 14 km = _____ m
- 4 18 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
1
112 h = 60 + 5 = 65 min
(b)
125 m =
4100 m = 0.04 m
9 m + 0.04 m = 9.04 m
(c)
1 km = 1000 m
2 km = 2000 m
14 km =
14 x 1000 = 250 m
2
14 km
= 2000 + 250
= 2250 m
(d)
1 kg = 1000 g
4 kg = 4000 g
18 kg =
18 x 1000 = 125 g
4
18 kg
= 4000 + 125
= 4125 g
Answer(s): 65, 9.04, 2250, 4125