40 mm
1 cm = 10 mm
1 mm = 0.1 cm
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4 centimeters=40 millimeters
25 millimeters is only 2.5 centimeters; so the 4 centimeters is greater.
There are 49 centimeters in 490 millimeters.
In order to subtract, we need all units to be equal. We can either convert centimeters to millimeters or millimeters to centimeters.4 centimeters = 40 millimeters40 millimeters - 10 millimeters = 30 millimeters. (3cm)10 millimeters = 1 centimeter4 centimeters - 1 centimeter = 3 centimeters (30 mm)
There is 244 Centimeters in 2,440 millimeters.