Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2.91 km = ______ m
- _____ m = 1807 cm
- _____ km = 1390 cm
- 6.842 ℓ = _____ cm3
(a)
1 km = 1000 m
2.91 km
= 2.91 x 1000
= 2910 m
(b)
1 m = 100 cm
1807 cm
= 1807 ÷ 100
= 18.07 m
(c)
1 km = 1000 m x 100 cm = 100000 cm
1390 cm
= 1390 ÷ 100000
= 0.0139 km
(d)
1 ℓ = 1000 cm
3 6.842 ℓ
= 6.842 x 1000
= 6842 cm
3 Answer(s): 2910, 18.07, 0.0139, 6842