Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8 km 10 m = ______ cm
- 3 km 2 m = ______ m
- 4 km 506 m = _______ m
- 6 km 6 m 6 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
8 km 10 m
= 8 x 100000 + 10 x 100
= 800000 + 1000
= 801000 cm
(b)
1 km = 1000 m
3 km 2 m
= 3 x 1000 + 2
= 3000 + 2
= 3002 m
(c)
1 km = 1000 m
4 km 506 m
= 4 x 1000 + 506
= 4000 + 506
= 4506 m
(d)
1 km = 100000 cm
1 m = 100 cm
6 km 6 m 6 cm
= 6 x 100000 + 6 x 100 + 6
= 600000 + 600 + 6
= 600606 cm
Answer(s): 801000, 3002, 4506, 600606