Find the following values without a calculator.
Which is larger?
- 4.2 cm or 0.42 m
- 3.6 ℓ or 360 mℓ
- 14 km or 1400 m
(a)
1 m = 100 cm
0.42 m = 0.42 x 100 = 42 cm
4.2 cm < 42 cm
4.2 cm < 0.42 m
(b)
1 ℓ = 1000 mℓ
3.6 ℓ = 3.6 x 1000 = 3600 mℓ
3600 mℓ > 360 mℓ
3.6 ℓ > 360 mℓ
(c)
1 km = 1000 m
14 km = 14 x 1000 = 14000 m
14000 m > 1400 m
14 km > 1400 m
Answer(s): (a) 0.42 m; (b) 3.6 ℓ; (c) 14 km