Find the following values without a calculator.
Which is larger?
- 1.7 cm or 0.17 m
- 3.1 ℓ or 310 mℓ
- 42 km or 4200 m
(a)
1 m = 100 cm
0.17 m = 0.17 x 100 = 17 cm
1.7 cm < 17 cm
1.7 cm < 0.17 m
(b)
1 ℓ = 1000 mℓ
3.1 ℓ = 3.1 x 1000 = 3100 mℓ
3100 mℓ > 310 mℓ
3.1 ℓ > 310 mℓ
(c)
1 km = 1000 m
42 km = 42 x 1000 = 42000 m
42000 m > 4200 m
42 km > 4200 m
Answer(s): (a) 0.17 m; (b) 3.1 ℓ; (c) 42 km