Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 6 km 72 m = ______ cm
- 8 km 7 m = ______ m
- 4 km 883 m = _______ m
- 5 km 7 m 5 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
6 km 72 m
= 6 x 100000 + 72 x 100
= 600000 + 7200
= 607200 cm
(b)
1 km = 1000 m
8 km 7 m
= 8 x 1000 + 7
= 8000 + 7
= 8007 m
(c)
1 km = 1000 m
4 km 883 m
= 4 x 1000 + 883
= 4000 + 883
= 4883 m
(d)
1 km = 100000 cm
1 m = 100 cm
5 km 7 m 5 cm
= 5 x 100000 + 7 x 100 + 5
= 500000 + 700 + 5
= 500705 cm
Answer(s): 607200, 8007, 4883, 500705