Which is equal to 5 meters?

One meter equals 1,000 millimeters, so 5 meters equals 5 × 1,000 = 5,000 millimeters. Therefore, the correct choice is 5,000 millimeters. The other choices are not equal to 5 meters: 50 centimeters is 0.5 meter, and 500 decimeters is 50 meters.

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