Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 12 h = _____ min
- 3 125 m = _____ m (Give the answer in decimal.)
- 6 15 km = _____ m
- 4 58 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
2
12 h = 120 + 30 = 150 min
(b)
125 m =
4100 m = 0.04 m
3 m + 0.04 m = 3.04 m
(c)
1 km = 1000 m
6 km = 6000 m
15 km =
15 x 1000 = 200 m
6
15 km
= 6000 + 200
= 6200 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): 150, 3.04, 6200, 4625