Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 112 h = _____ min
- 3 24 m = _____ m (Give the answer in decimal.)
- 8 15 km = _____ m
- 6 78 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
3
112 h = 180 + 5 = 185 min
(b)
24 m =
50100 m = 0.5 m
3 m + 0.5 m = 3.5 m
(c)
1 km = 1000 m
8 km = 8000 m
15 km =
15 x 1000 = 200 m
8
15 km
= 8000 + 200
= 8200 m
(d)
1 kg = 1000 g
6 kg = 6000 g
78 kg =
78 x 1000 = 875 g
6
78 kg
= 6000 + 875
= 6875 g
Answer(s): 185, 3.5, 8200, 6875