Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 7 km = _______ m
- 2 km = _______ cm
- 9 m = _______ cm
- 9 cm = _____ mm
(a)
1 km = 1000 m
7 km
= 7 x 1000
= 7000 m
(b)
1 km
= 1000 m x 100 cm
= 100000 cm
2 km
= 2 x 100000
= 200000 cm
(c)
1 = 100 cm
9 m
= 9 x 100
= 900 cm
(d)
1 cm = 10 mm
9 cm
= 9 x 10
= 90 mm
Answer(s): 7000, 200000, 900, 90