Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 13 h = _____ min
- 5 420 m = _____ m (Give the answer in decimal.)
- 7 14 km = _____ m
- 4 58 kg = _____ g
(a)
1 h = 60 min
13 h =
13 x 60 = 20 min
3
13 h = 180 + 20 = 200 min
(b)
420 m =
20100 m = 0.2 m
5 m + 0.2 m = 5.2 m
(c)
1 km = 1000 m
7 km = 7000 m
14 km =
14 x 1000 = 250 m
7
14 km
= 7000 + 250
= 7250 m
(d)
1 kg = 1000 g
4 kg = 4000 g
58 kg =
58 x 1000 = 625 g
4
58 kg
= 4000 + 625
= 4625 g
Answer(s): 200, 5.2, 7250, 4625