Find the following values without a calculator.
Which is larger?
- 3.8 cm or 0.38 m
- 1.3 ℓ or 130 mℓ
- 80 km or 8000 m
(a)
1 m = 100 cm
0.38 m = 0.38 x 100 = 38 cm
3.8 cm < 38 cm
3.8 cm < 0.38 m
(b)
1 ℓ = 1000 mℓ
1.3 ℓ = 1.3 x 1000 = 1300 mℓ
1300 mℓ > 130 mℓ
1.3 ℓ > 130 mℓ
(c)
1 km = 1000 m
80 km = 80 x 1000 = 80000 m
80000 m > 8000 m
80 km > 8000 m
Answer(s): (a) 0.38 m; (b) 1.3 ℓ; (c) 80 km