30mm
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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 are 49 centimeters in 490 millimeters.
2 millimeters = 0.2 centimeters
56 centimeters is 560 millimeters.
64 cubic centimeters = 64000 cubic millimeters Answer Method: 1. Redefine the question as "How do you calculate 4 x 4 x 4 into cubic centimeters and cubic millimeters?" 2. 4cm x 4cm x 4cm = 4^3 = 64 cubic centimeters. 3. 64 cubic centimeters = 64000 cubic millimeters Note: 1 cubic centimeter = 1000 cubic millimeters. ====== Answer 1: unanswerable question in current form