Find the following values without a calculator.
Which is larger?
- 4.8 cm or 0.48 m
- 2.3 ℓ or 230 mℓ
- 39 km or 3900 m
(a)
1 m = 100 cm
0.48 m = 0.48 x 100 = 48 cm
4.8 cm < 48 cm
4.8 cm < 0.48 m
(b)
1 ℓ = 1000 mℓ
2.3 ℓ = 2.3 x 1000 = 2300 mℓ
2300 mℓ > 230 mℓ
2.3 ℓ > 230 mℓ
(c)
1 km = 1000 m
39 km = 39 x 1000 = 39000 m
39000 m > 3900 m
39 km > 3900 m
Answer(s): (a) 0.48 m; (b) 2.3 ℓ; (c) 39 km