The difference between 5 meters and 5.5 meters

Different expressions. According to the unit conversion rules, 1 m is equal to 100 cm, then 5 m can be written as 500 cm, 5.5 m can be written as 550 cm, 5.5 m is longer than 5 m, and 5m can also be written as 5.0m, but the numbers after the decimal point can be omitted and ignored.