Find the following values without a calculator.
Which is larger?
- 4.4 cm or 0.44 m
- 2.1 ℓ or 210 mℓ
- 70 km or 7000 m
(a)
1 m = 100 cm
0.44 m = 0.44 x 100 = 44 cm
4.4 cm < 44 cm
4.4 cm < 0.44 m
(b)
1 ℓ = 1000 mℓ
2.1 ℓ = 2.1 x 1000 = 2100 mℓ
2100 mℓ > 210 mℓ
2.1 ℓ > 210 mℓ
(c)
1 km = 1000 m
70 km = 70 x 1000 = 70000 m
70000 m > 7000 m
70 km > 7000 m
Answer(s): (a) 0.44 m; (b) 2.1 ℓ; (c) 70 km