Find the following values without a calculator.
Which is smaller?
- 1.8 cm or 0.18 m
- 1.5 ℓ or 150 mℓ
- 27 km or 2700 m
(a)
1 m = 100 cm
0.18 m = 0.18 x 100 = 18 cm
1.8 cm < 18 cm
1.8 cm < 0.18 m
(b)
1 ℓ = 1000 mℓ
1.5 ℓ = 1.5 x 1000 = 1500 mℓ
1500 mℓ > 150 mℓ
1.5 ℓ > 150 mℓ
(c)
1 km = 1000 m
27 km = 27 x 1000 = 27000 m
27000 m > 2700 m
27 km > 2700 m
Answer(s): (a) 1.8 cm; (b) 150 mℓ; (c) 2700 m