How many millimeters are in 3 centimeters?

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Multiple Choice

How many millimeters are in 3 centimeters?

Explanation:
Converting within the metric system: 1 centimeter equals 10 millimeters. So, multiply by 10 to go from centimeters to millimeters. 3 cm × 10 mm/cm = 30 mm. Therefore, there are 30 millimeters in 3 centimeters. The other numbers come from incorrect scaling: 0.3 mm would require dividing by 100, 3 mm would come from treating 1 cm as 1 mm, and 300 mm would come from treating 1 cm as 100 mm.

Converting within the metric system: 1 centimeter equals 10 millimeters. So, multiply by 10 to go from centimeters to millimeters. 3 cm × 10 mm/cm = 30 mm. Therefore, there are 30 millimeters in 3 centimeters. The other numbers come from incorrect scaling: 0.3 mm would require dividing by 100, 3 mm would come from treating 1 cm as 1 mm, and 300 mm would come from treating 1 cm as 100 mm.

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