Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 12 h = _____ min
- 3 210 m = _____ m (Give the answer in decimal.)
- 6 14 km = _____ m
- 8 12 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
2
12 h = 120 + 30 = 150 min
(b)
210 m =
20100 m = 0.2 m
3 m + 0.2 m = 3.2 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
8 kg = 8000 g
12 kg =
12 x 1000 = 500 g
8
12 kg
= 8000 + 500
= 8500 g
Answer(s): 150, 3.2, 6250, 8500