Question

which one of the following measurement represents the longest distance 5m, 10cm, 50mm, 1km

Answer 1

First you need to convert them to one common measurement... I'll use cm for the measurement.

• 1m = 100 cm
• 10 cm = 10 cm
• 50 mm = 0.1 cm
• 1 km = 100000 cm

Using this info to convert gives

• 500 cm
• 10 cm
• 5 cm
• 100000 cm

The smallest is 50 mm which is equal to 5 cm