Find the following values without a calculator.
Which is smaller?
- 3.7 cm or 0.37 m
- 2.8 ℓ or 280 mℓ
- 77 km or 7700 m
(a)
1 m = 100 cm
0.37 m = 0.37 x 100 = 37 cm
3.7 cm < 37 cm
3.7 cm < 0.37 m
(b)
1 ℓ = 1000 mℓ
2.8 ℓ = 2.8 x 1000 = 2800 mℓ
2800 mℓ > 280 mℓ
2.8 ℓ > 280 mℓ
(c)
1 km = 1000 m
77 km = 77 x 1000 = 77000 m
77000 m > 7700 m
77 km > 7700 m
Answer(s): (a) 3.7 cm; (b) 280 mℓ; (c) 7700 m