Find the following values without a calculator.
Which is larger?
- 2.3 cm or 0.23 m
- 1.7 ℓ or 170 mℓ
- 91 km or 9100 m
(a)
1 m = 100 cm
0.23 m = 0.23 x 100 = 23 cm
2.3 cm < 23 cm
2.3 cm < 0.23 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
91 km = 91 x 1000 = 91000 m
91000 m > 9100 m
91 km > 9100 m
Answer(s): (a) 0.23 m; (b) 1.7 ℓ; (c) 91 km