Find the following values without a calculator.
Which is smaller?
- 3.1 cm or 0.31 m
- 4.8 ℓ or 480 mℓ
- 57 km or 5700 m
(a)
1 m = 100 cm
0.31 m = 0.31 x 100 = 31 cm
3.1 cm < 31 cm
3.1 cm < 0.31 m
(b)
1 ℓ = 1000 mℓ
4.8 ℓ = 4.8 x 1000 = 4800 mℓ
4800 mℓ > 480 mℓ
4.8 ℓ > 480 mℓ
(c)
1 km = 1000 m
57 km = 57 x 1000 = 57000 m
57000 m > 5700 m
57 km > 5700 m
Answer(s): (a) 3.1 cm; (b) 480 mℓ; (c) 5700 m