Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 kg 7 g = _____ g
- 7 km 22 m = _____ m
- 29 ℓ 90 mℓ = _____ mℓ
- 8 m 5 cm = _____ cm
(a)
1 kg = 1000 g
2 kg 7 g
= 2 x 1000 + 7
= 2000 + 7
= 2007 g
(b)
1 km = 1000 m
7 km 22 m
= 7 x 1000 + 22
= 7000 + 22
= 7022 m
(c)
1 ℓ = 1000 mℓ
29 ℓ 90 mℓ
= 29 x 1000 + 90
= 29000 + 90
= 29090 mℓ
(d)
1 m = 100 cm
8 m 5 cm
= 8 x 100 + 5
= 800 + 5
= 805 cm
Answer(s): 2007, 7022, 29090, 805