Find the following values without a calculator.
Give your answers in this manner. (Eg 0.1, 0.2, 0.3, 0.4)
- 25 cm = _____ m
- 50 m = ______ km
- 45 mℓ = ______ ℓ
- 7 g = ______ kg
(a)
1 = 100 cm
25 cm
= 25 ÷ 100
= 0.25
(b)
1 km = 1000 m
50 m
= 50 ÷ 1000
= 0.05 km
(c)
1 ℓ = 1000 mℓ
45 mℓ
= 45 ÷ 1000
= 0.045 ℓ
(d)
1 kg = 1000 g
7 g
= 7 ÷ 1000
= 0.007 kg
Answer(s): 0.25, 0.05, 0.045, 0.007