Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 kg 4 g = _____ g
- 1 km 42 m = _____ m
- 42 ℓ 75 mℓ = _____ mℓ
- 1 m 3 cm = _____ cm
(a)
1 kg = 1000 g
2 kg 4 g
= 2 x 1000 + 4
= 2000 + 4
= 2004 g
(b)
1 km = 1000 m
1 km 42 m
= 1 x 1000 + 42
= 1000 + 42
= 1042 m
(c)
1 ℓ = 1000 mℓ
42 ℓ 75 mℓ
= 42 x 1000 + 75
= 42000 + 75
= 42075 mℓ
(d)
1 m = 100 cm
1 m 3 cm
= 1 x 100 + 3
= 100 + 3
= 103 cm
Answer(s): 2004, 1042, 42075, 103