9 cm is how many mm?
90
How many mm is 3 cm?
30
20 m is how many cm?
2000
24 m is how many dm?
240
15 km is how many meters?
15000
11 cm is how many mm?
110
4 dm is how many cm?
40
2 km is how many meters?
2000
7 m is how many cm?
700
