Find the following values without a calculator.
Which is larger?
- 4.6 cm or 0.46 m
- 1.2 ℓ or 120 mℓ
- 31 km or 3100 m
(a)
1 m = 100 cm
0.46 m = 0.46 x 100 = 46 cm
4.6 cm < 46 cm
4.6 cm < 0.46 m
(b)
1 ℓ = 1000 mℓ
1.2 ℓ = 1.2 x 1000 = 1200 mℓ
1200 mℓ > 120 mℓ
1.2 ℓ > 120 mℓ
(c)
1 km = 1000 m
31 km = 31 x 1000 = 31000 m
31000 m > 3100 m
31 km > 3100 m
Answer(s): (a) 0.46 m; (b) 1.2 ℓ; (c) 31 km