Find the following values without a calculator.
Which is smaller?
- 3.4 cm or 0.34 m
- 4.3 ℓ or 430 mℓ
- 81 km or 8100 m
(a)
1 m = 100 cm
0.34 m = 0.34 x 100 = 34 cm
3.4 cm < 34 cm
3.4 cm < 0.34 m
(b)
1 ℓ = 1000 mℓ
4.3 ℓ = 4.3 x 1000 = 4300 mℓ
4300 mℓ > 430 mℓ
4.3 ℓ > 430 mℓ
(c)
1 km = 1000 m
81 km = 81 x 1000 = 81000 m
81000 m > 8100 m
81 km > 8100 m
Answer(s): (a) 3.4 cm; (b) 430 mℓ; (c) 8100 m