Question

which metric length is the longest? *
2 centimeters
2 meters
2 milimeters
2 kilometers

Explanation:

Step1: Recall metric - length conversion

1 kilometer (km) = 1000 meters (m), 1 meter (m)=100 centimeters (cm), 1 centimeter (cm) = 10 millimeters (mm).

Step2: Convert all to meters

2 centimeters = 2÷100 = 0.02 meters; 2 meters = 2 meters; 2 millimeters=2÷1000 = 0.002 meters; 2 kilometers = 2×1000 = 2000 meters.

Step3: Compare the values

0.002 < 0.02 < 2 < 2000.

Answer:

2 kilometers