Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 6 km 17 m = ______ cm
- 5 km 7 m = ______ m
- 4 km 173 m = _______ m
- 9 km 3 m 9 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
6 km 17 m
= 6 x 100000 + 17 x 100
= 600000 + 1700
= 601700 cm
(b)
1 km = 1000 m
5 km 7 m
= 5 x 1000 + 7
= 5000 + 7
= 5007 m
(c)
1 km = 1000 m
4 km 173 m
= 4 x 1000 + 173
= 4000 + 173
= 4173 m
(d)
1 km = 100000 cm
1 m = 100 cm
9 km 3 m 9 cm
= 9 x 100000 + 3 x 100 + 9
= 900000 + 300 + 9
= 900309 cm
Answer(s): 601700, 5007, 4173, 900309