Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 23 h = _____ min
- 5 25 m = _____ m (Give the answer in decimal.)
- 6 14 km = _____ m
- 5 58 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
3
23 h = 180 + 40 = 220 min
(b)
25 m =
40100 m = 0.4 m
5 m + 0.4 m = 5.4 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
5 kg = 5000 g
58 kg =
58 x 1000 = 625 g
5
58 kg
= 5000 + 625
= 5625 g
Answer(s): 220, 5.4, 6250, 5625