Find the following values without a calculator.
Which is smaller?
- 4.7 cm or 0.47 m
- 1.7 ℓ or 170 mℓ
- 67 km or 6700 m
(a)
1 m = 100 cm
0.47 m = 0.47 x 100 = 47 cm
4.7 cm < 47 cm
4.7 cm < 0.47 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
67 km = 67 x 1000 = 67000 m
67000 m > 6700 m
67 km > 6700 m
Answer(s): (a) 4.7 cm; (b) 170 mℓ; (c) 6700 m