Find the following values without a calculator.
Which is larger?
- 3.2 cm or 0.32 m
- 2.7 ℓ or 270 mℓ
- 39 km or 3900 m
(a)
1 m = 100 cm
0.32 m = 0.32 x 100 = 32 cm
3.2 cm < 32 cm
3.2 cm < 0.32 m
(b)
1 ℓ = 1000 mℓ
2.7 ℓ = 2.7 x 1000 = 2700 mℓ
2700 mℓ > 270 mℓ
2.7 ℓ > 270 mℓ
(c)
1 km = 1000 m
39 km = 39 x 1000 = 39000 m
39000 m > 3900 m
39 km > 3900 m
Answer(s): (a) 0.32 m; (b) 2.7 ℓ; (c) 39 km