Find the following values without a calculator.
Which is smaller?
- 2.4 cm or 0.24 m
- 4.4 ℓ or 440 mℓ
- 47 km or 4700 m
(a)
1 m = 100 cm
0.24 m = 0.24 x 100 = 24 cm
2.4 cm < 24 cm
2.4 cm < 0.24 m
(b)
1 ℓ = 1000 mℓ
4.4 ℓ = 4.4 x 1000 = 4400 mℓ
4400 mℓ > 440 mℓ
4.4 ℓ > 440 mℓ
(c)
1 km = 1000 m
47 km = 47 x 1000 = 47000 m
47000 m > 4700 m
47 km > 4700 m
Answer(s): (a) 2.4 cm; (b) 440 mℓ; (c) 4700 m