If 100 pieces, each 15 centimeters long, are cut from a 51-meter long ribbon, how much ribbon remains ?
The total length cut from the 51-meter ribbon is 100 x 15 centimeters = <T>multiply(100, 15)=1500 centimeters.
Since 1 meter is equal to 100 centimeters, then 1500 centimeters is equal to 1500/100 = <T>divide(1500, 100)=15.0 meters.
Therefore, 51 - 15 = <T>subtract(51, 15)=36 meters of ribbon remains.
