An inch in equal to about 2.54 centimeters. Write an expression which estimates the number of centimeters in x inches. Then estimate the number of centimeters in 12inches.
expression: x inches * _2.54 centimeters_ = # of centimeters in x inches 1 inch the reason the 1 inch is in the denominator is to cancel out the inches for x so that you are only left with centimeters.
estimate: 12 inch * _2.54 centimeters_ = 30.48 centimeters. 1 inch
