Find the following values without a calculator.
Which is smaller?
- 3.3 cm or 0.33 m
- 1.2 ℓ or 120 mℓ
- 66 km or 6600 m
(a)
1 m = 100 cm
0.33 m = 0.33 x 100 = 33 cm
3.3 cm < 33 cm
3.3 cm < 0.33 m
(b)
1 ℓ = 1000 mℓ
1.2 ℓ = 1.2 x 1000 = 1200 mℓ
1200 mℓ > 120 mℓ
1.2 ℓ > 120 mℓ
(c)
1 km = 1000 m
66 km = 66 x 1000 = 66000 m
66000 m > 6600 m
66 km > 6600 m
Answer(s): (a) 3.3 cm; (b) 120 mℓ; (c) 6600 m