Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 9 km 11 m = ______ cm
- 5 km 6 m = ______ m
- 8 km 739 m = _______ m
- 6 km 6 m 2 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
9 km 11 m
= 9 x 100000 + 11 x 100
= 900000 + 1100
= 901100 cm
(b)
1 km = 1000 m
5 km 6 m
= 5 x 1000 + 6
= 5000 + 6
= 5006 m
(c)
1 km = 1000 m
8 km 739 m
= 8 x 1000 + 739
= 8000 + 739
= 8739 m
(d)
1 km = 100000 cm
1 m = 100 cm
6 km 6 m 2 cm
= 6 x 100000 + 6 x 100 + 2
= 600000 + 600 + 2
= 600602 cm
Answer(s): 901100, 5006, 8739, 600602