Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 4 km 17 m = ______ cm
- 7 km 9 m = ______ m
- 3 km 376 m = _______ m
- 2 km 2 m 2 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
4 km 17 m
= 4 x 100000 + 17 x 100
= 400000 + 1700
= 401700 cm
(b)
1 km = 1000 m
7 km 9 m
= 7 x 1000 + 9
= 7000 + 9
= 7009 m
(c)
1 km = 1000 m
3 km 376 m
= 3 x 1000 + 376
= 3000 + 376
= 3376 m
(d)
1 km = 100000 cm
1 m = 100 cm
2 km 2 m 2 cm
= 2 x 100000 + 2 x 100 + 2
= 200000 + 200 + 2
= 200202 cm
Answer(s): 401700, 7009, 3376, 200202