Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 4 km 92 m = ______ cm
- 6 km 6 m = ______ m
- 4 km 539 m = _______ m
- 8 km 8 m 5 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
4 km 92 m
= 4 x 100000 + 92 x 100
= 400000 + 9200
= 409200 cm
(b)
1 km = 1000 m
6 km 6 m
= 6 x 1000 + 6
= 6000 + 6
= 6006 m
(c)
1 km = 1000 m
4 km 539 m
= 4 x 1000 + 539
= 4000 + 539
= 4539 m
(d)
1 km = 100000 cm
1 m = 100 cm
8 km 8 m 5 cm
= 8 x 100000 + 8 x 100 + 5
= 800000 + 800 + 5
= 800805 cm
Answer(s): 409200, 6006, 4539, 800805