Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 112 h = _____ min
- 2 225 m = _____ m (Give the answer in decimal.)
- 6 15 km = _____ m
- 2 14 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
1
112 h = 60 + 5 = 65 min
(b)
225 m =
8100 m = 0.08 m
2 m + 0.08 m = 2.08 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
2 kg = 2000 g
14 kg =
14 x 1000 = 250 g
2
14 kg
= 2000 + 250
= 2250 g
Answer(s): 65, 2.08, 6200, 2250