Find the following values without a calculator.
Which is smaller?
- 2.7 cm or 0.27 m
- 1.7 ℓ or 170 mℓ
- 38 km or 3800 m
(a)
1 m = 100 cm
0.27 m = 0.27 x 100 = 27 cm
2.7 cm < 27 cm
2.7 cm < 0.27 m
(b)
1 ℓ = 1000 mℓ
1.7 ℓ = 1.7 x 1000 = 1700 mℓ
1700 mℓ > 170 mℓ
1.7 ℓ > 170 mℓ
(c)
1 km = 1000 m
38 km = 38 x 1000 = 38000 m
38000 m > 3800 m
38 km > 3800 m
Answer(s): (a) 2.7 cm; (b) 170 mℓ; (c) 3800 m