Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 112 h = _____ min
- 9 650 m = _____ m (Give the answer in decimal.)
- 6 14 km = _____ m
- 2 78 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
3
112 h = 180 + 5 = 185 min
(b)
650 m =
12100 m = 0.12 m
9 m + 0.12 m = 9.12 m
(c)
1 km = 1000 m
6 km = 6000 m
14 km =
14 x 1000 = 250 m
6
14 km
= 6000 + 250
= 6250 m
(d)
1 kg = 1000 g
2 kg = 2000 g
78 kg =
78 x 1000 = 875 g
2
78 kg
= 2000 + 875
= 2875 g
Answer(s): 185, 9.12, 6250, 2875