Find the following values without a calculator.
Which is larger?
- 2.2 cm or 0.22 m
- 1.7 ℓ or 170 mℓ
- 58 km or 5800 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
1.7 ℓ = 1.7 x 1000 = 1700 mℓ
1700 mℓ > 170 mℓ
1.7 ℓ > 170 mℓ
(c)
1 km = 1000 m
58 km = 58 x 1000 = 58000 m
58000 m > 5800 m
58 km > 5800 m
Answer(s): (a) 0.22 m; (b) 1.7 ℓ; (c) 58 km