Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 6 km 11 m = ______ cm
- 4 km 5 m = ______ m
- 9 km 759 m = _______ m
- 7 km 6 m 9 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
6 km 11 m
= 6 x 100000 + 11 x 100
= 600000 + 1100
= 601100 cm
(b)
1 km = 1000 m
4 km 5 m
= 4 x 1000 + 5
= 4000 + 5
= 4005 m
(c)
1 km = 1000 m
9 km 759 m
= 9 x 1000 + 759
= 9000 + 759
= 9759 m
(d)
1 km = 100000 cm
1 m = 100 cm
7 km 6 m 9 cm
= 7 x 100000 + 6 x 100 + 9
= 700000 + 600 + 9
= 700609 cm
Answer(s): 601100, 4005, 9759, 700609