Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8 km 61 m = ______ cm
- 4 km 4 m = ______ m
- 5 km 332 m = _______ m
- 6 km 2 m 8 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
8 km 61 m
= 8 x 100000 + 61 x 100
= 800000 + 6100
= 806100 cm
(b)
1 km = 1000 m
4 km 4 m
= 4 x 1000 + 4
= 4000 + 4
= 4004 m
(c)
1 km = 1000 m
5 km 332 m
= 5 x 1000 + 332
= 5000 + 332
= 5332 m
(d)
1 km = 100000 cm
1 m = 100 cm
6 km 2 m 8 cm
= 6 x 100000 + 2 x 100 + 8
= 600000 + 200 + 8
= 600208 cm
Answer(s): 806100, 4004, 5332, 600208