Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 6 km 37 m = ______ cm
- 6 km 5 m = ______ m
- 9 km 375 m = _______ m
- 2 km 8 m 7 cm = _______ cm
(a)
1 km = 100000 cm
1 m = 100 cm
6 km 37 m
= 6 x 100000 + 37 x 100
= 600000 + 3700
= 603700 cm
(b)
1 km = 1000 m
6 km 5 m
= 6 x 1000 + 5
= 6000 + 5
= 6005 m
(c)
1 km = 1000 m
9 km 375 m
= 9 x 1000 + 375
= 9000 + 375
= 9375 m
(d)
1 km = 100000 cm
1 m = 100 cm
2 km 8 m 7 cm
= 2 x 100000 + 8 x 100 + 7
= 200000 + 800 + 7
= 200807 cm
Answer(s): 603700, 6005, 9375, 200807