Find the following values without a calculator.
Which is smaller?
- 2.9 cm or 0.29 m
- 4.1 ℓ or 410 mℓ
- 17 km or 1700 m
(a)
1 m = 100 cm
0.29 m = 0.29 x 100 = 29 cm
2.9 cm < 29 cm
2.9 cm < 0.29 m
(b)
1 ℓ = 1000 mℓ
4.1 ℓ = 4.1 x 1000 = 4100 mℓ
4100 mℓ > 410 mℓ
4.1 ℓ > 410 mℓ
(c)
1 km = 1000 m
17 km = 17 x 1000 = 17000 m
17000 m > 1700 m
17 km > 1700 m
Answer(s): (a) 2.9 cm; (b) 410 mℓ; (c) 1700 m