Find the following values without a calculator.
Which is larger?
- 3.7 cm or 0.37 m
- 3.2 ℓ or 320 mℓ
- 80 km or 8000 m
(a)
1 m = 100 cm
0.37 m = 0.37 x 100 = 37 cm
3.7 cm < 37 cm
3.7 cm < 0.37 m
(b)
1 ℓ = 1000 mℓ
3.2 ℓ = 3.2 x 1000 = 3200 mℓ
3200 mℓ > 320 mℓ
3.2 ℓ > 320 mℓ
(c)
1 km = 1000 m
80 km = 80 x 1000 = 80000 m
80000 m > 8000 m
80 km > 8000 m
Answer(s): (a) 0.37 m; (b) 3.2 ℓ; (c) 80 km