Find the following values without a calculator.
Which is smaller?
- 4.3 cm or 0.43 m
- 1.7 ℓ or 170 mℓ
- 25 km or 2500 m
(a)
1 m = 100 cm
0.43 m = 0.43 x 100 = 43 cm
4.3 cm < 43 cm
4.3 cm < 0.43 m
(b)
1 ℓ = 1000 mℓ
1.7 ℓ = 1.7 x 1000 = 1700 mℓ
1700 mℓ > 170 mℓ
1.7 ℓ > 170 mℓ
(c)
1 km = 1000 m
25 km = 25 x 1000 = 25000 m
25000 m > 2500 m
25 km > 2500 m
Answer(s): (a) 4.3 cm; (b) 170 mℓ; (c) 2500 m