Find the following values without a calculator.
Which is smaller?
- 3.1 cm or 0.31 m
- 3.4 ℓ or 340 mℓ
- 67 km or 6700 m
(a)
1 m = 100 cm
0.31 m = 0.31 x 100 = 31 cm
3.1 cm < 31 cm
3.1 cm < 0.31 m
(b)
1 ℓ = 1000 mℓ
3.4 ℓ = 3.4 x 1000 = 3400 mℓ
3400 mℓ > 340 mℓ
3.4 ℓ > 340 mℓ
(c)
1 km = 1000 m
67 km = 67 x 1000 = 67000 m
67000 m > 6700 m
67 km > 6700 m
Answer(s): (a) 3.1 cm; (b) 340 mℓ; (c) 6700 m