Find the following values without a calculator.
Which is larger?
- 2.9 cm or 0.29 m
- 3.4 ℓ or 340 mℓ
- 74 km or 7400 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
3.4 ℓ = 3.4 x 1000 = 3400 mℓ
3400 mℓ > 340 mℓ
3.4 ℓ > 340 mℓ
(c)
1 km = 1000 m
74 km = 74 x 1000 = 74000 m
74000 m > 7400 m
74 km > 7400 m
Answer(s): (a) 0.29 m; (b) 3.4 ℓ; (c) 74 km