Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8 km 88 m = ______ cm
- 6 km 9 m = ______ m
- 4 km 222 m = _______ m
- 6 km 9 m 5 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
8 km 88 m
= 8 x 100000 + 88 x 100
= 800000 + 8800
= 808800 cm
(b)
1 km = 1000 m
6 km 9 m
= 6 x 1000 + 9
= 6000 + 9
= 6009 m
(c)
1 km = 1000 m
4 km 222 m
= 4 x 1000 + 222
= 4000 + 222
= 4222 m
(d)
1 km = 100000 cm
1 m = 100 cm
6 km 9 m 5 cm
= 6 x 100000 + 9 x 100 + 5
= 600000 + 900 + 5
= 600905 cm
Answer(s): 808800, 6009, 4222, 600905