Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 4 kg 2 g = _____ g
- 1 km 21 m = _____ m
- 99 ℓ 45 mℓ = _____ mℓ
- 1 m 4 cm = _____ cm
(a)
1 kg = 1000 g
4 kg 2 g
= 4 x 1000 + 2
= 4000 + 2
= 4002 g
(b)
1 km = 1000 m
1 km 21 m
= 1 x 1000 + 21
= 1000 + 21
= 1021 m
(c)
1 ℓ = 1000 mℓ
99 ℓ 45 mℓ
= 99 x 1000 + 45
= 99000 + 45
= 99045 mℓ
(d)
1 m = 100 cm
1 m 4 cm
= 1 x 100 + 4
= 100 + 4
= 104 cm
Answer(s): 4002, 1021, 99045, 104