Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 12 h = _____ min
- 9 225 m = _____ m (Give the answer in decimal.)
- 6 14 km = _____ m
- 2 12 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
2
12 h = 120 + 30 = 150 min
(b)
225 m =
8100 m = 0.08 m
9 m + 0.08 m = 9.08 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
2 kg = 2000 g
12 kg =
12 x 1000 = 500 g
2
12 kg
= 2000 + 500
= 2500 g
Answer(s): 150, 9.08, 6250, 2500