Find the following values without a calculator.
Which is larger?
- 2.6 cm or 0.26 m
- 4.9 ℓ or 490 mℓ
- 70 km or 7000 m
(a)
1 m = 100 cm
0.26 m = 0.26 x 100 = 26 cm
2.6 cm < 26 cm
2.6 cm < 0.26 m
(b)
1 ℓ = 1000 mℓ
4.9 ℓ = 4.9 x 1000 = 4900 mℓ
4900 mℓ > 490 mℓ
4.9 ℓ > 490 mℓ
(c)
1 km = 1000 m
70 km = 70 x 1000 = 70000 m
70000 m > 7000 m
70 km > 7000 m
Answer(s): (a) 0.26 m; (b) 4.9 ℓ; (c) 70 km