Find the following values without a calculator.
Which is larger?
- 2.2 cm or 0.22 m
- 3.1 ℓ or 310 mℓ
- 83 km or 8300 m
(a)
1 m = 100 cm
0.22 m = 0.22 x 100 = 22 cm
2.2 cm < 22 cm
2.2 cm < 0.22 m
(b)
1 ℓ = 1000 mℓ
3.1 ℓ = 3.1 x 1000 = 3100 mℓ
3100 mℓ > 310 mℓ
3.1 ℓ > 310 mℓ
(c)
1 km = 1000 m
83 km = 83 x 1000 = 83000 m
83000 m > 8300 m
83 km > 8300 m
Answer(s): (a) 0.22 m; (b) 3.1 ℓ; (c) 83 km