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Putting them in a common unit is a great start. 200 mm is equal to 0.2 m, 22 dm is equal to 2.2 m and 22 cm is equal to 0.22 m. Therefore, the order from least to greatest is 200 mm, 22 cm, 2 m and 22 dm.
What does 200mm equal to
8
200mm
200 millimeters is equal to 7.87402 inches.
10 cm = 1 dm
8.4 dm
mm means "millimeters"dm means "decimeters"Note that "milli-" means "thousandths of a unit" and "deci-" means "tenths of a unit".This means:1 m = 1000 mm1 m = 10 dmCombine these conversions altogether to get:1 mm = 1.0 x 10-3 m = 1.0 x 10-2 dmAnother way of interpreting this is 1 dm = 100 mm. Therefore, 200 mm is 2 dm.
1 dm is equal to 100 mm (as 1 dm = 10 cm 1 cm = 10 mm)
100 mm = 1 dm
40 dm = 400 cm