Find the following values without a calculator.
Which is larger?
- 2.5 cm or 0.25 m
- 3.2 ℓ or 320 mℓ
- 24 km or 2400 m
(a)
1 m = 100 cm
0.25 m = 0.25 x 100 = 25 cm
2.5 cm < 25 cm
2.5 cm < 0.25 m
(b)
1 ℓ = 1000 mℓ
3.2 ℓ = 3.2 x 1000 = 3200 mℓ
3200 mℓ > 320 mℓ
3.2 ℓ > 320 mℓ
(c)
1 km = 1000 m
24 km = 24 x 1000 = 24000 m
24000 m > 2400 m
24 km > 2400 m
Answer(s): (a) 0.25 m; (b) 3.2 ℓ; (c) 24 km