Answer
1800 cm
Work Step by Step
Put the unit for the answer (centimeters) in the numerator of the unit fraction; put the unit you want to change (m) in the denominator.
Unit Fraction equivalent to 1 = $\frac{100 centimeters}{1 meter}$
Multiply 18 m times the unit fraction.
18 m * $\frac{100 centimeters}{1 meter}$= 1800 cm