Find the following values without a calculator.
Which is larger?
- 2.3 cm or 0.23 m
- 2.7 ℓ or 270 mℓ
- 55 km or 5500 m
(a)
1 m = 100 cm
0.23 m = 0.23 x 100 = 23 cm
2.3 cm < 23 cm
2.3 cm < 0.23 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
55 km = 55 x 1000 = 55000 m
55000 m > 5500 m
55 km > 5500 m
Answer(s): (a) 0.23 m; (b) 2.7 ℓ; (c) 55 km