Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 km 63 m = ______ cm
- 6 km 4 m = ______ m
- 9 km 716 m = _______ m
- 5 km 6 m 4 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
2 km 63 m
= 2 x 100000 + 63 x 100
= 200000 + 6300
= 206300 cm
(b)
1 km = 1000 m
6 km 4 m
= 6 x 1000 + 4
= 6000 + 4
= 6004 m
(c)
1 km = 1000 m
9 km 716 m
= 9 x 1000 + 716
= 9000 + 716
= 9716 m
(d)
1 km = 100000 cm
1 m = 100 cm
5 km 6 m 4 cm
= 5 x 100000 + 6 x 100 + 4
= 500000 + 600 + 4
= 500604 cm
Answer(s): 206300, 6004, 9716, 500604