Find the following values without a calculator.
Which is larger?
- 4.5 cm or 0.45 m
- 2.6 ℓ or 260 mℓ
- 64 km or 6400 m
(a)
1 m = 100 cm
0.45 m = 0.45 x 100 = 45 cm
4.5 cm < 45 cm
4.5 cm < 0.45 m
(b)
1 ℓ = 1000 mℓ
2.6 ℓ = 2.6 x 1000 = 2600 mℓ
2600 mℓ > 260 mℓ
2.6 ℓ > 260 mℓ
(c)
1 km = 1000 m
64 km = 64 x 1000 = 64000 m
64000 m > 6400 m
64 km > 6400 m
Answer(s): (a) 0.45 m; (b) 2.6 ℓ; (c) 64 km