Find the following values without a calculator.
Give your answers in this manner. (Eg 0.1, 0.2, 0.3, 0.4)
- 21 cm = _____ m
- 40 m = ______ km
- 17 mℓ = ______ ℓ
- 47 g = ______ kg
(a)
1 = 100 cm
21 cm
= 21 ÷ 100
= 0.21
(b)
1 km = 1000 m
40 m
= 40 ÷ 1000
= 0.04 km
(c)
1 ℓ = 1000 mℓ
17 mℓ
= 17 ÷ 1000
= 0.017 ℓ
(d)
1 kg = 1000 g
47 g
= 47 ÷ 1000
= 0.047 kg
Answer(s): 0.21, 0.04, 0.017, 0.047