Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 6 km 88 m = ______ cm
- 4 km 4 m = ______ m
- 3 km 146 m = _______ m
- 3 km 9 m 3 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
6 km 88 m
= 6 x 100000 + 88 x 100
= 600000 + 8800
= 608800 cm
(b)
1 km = 1000 m
4 km 4 m
= 4 x 1000 + 4
= 4000 + 4
= 4004 m
(c)
1 km = 1000 m
3 km 146 m
= 3 x 1000 + 146
= 3000 + 146
= 3146 m
(d)
1 km = 100000 cm
1 m = 100 cm
3 km 9 m 3 cm
= 3 x 100000 + 9 x 100 + 3
= 300000 + 900 + 3
= 300903 cm
Answer(s): 608800, 4004, 3146, 300903