Cody has a strip of paper 10 centimeters long he cut it into three pieces one piece is 4 centimeters long the second piece is 3 centimeters how long is the third piece

The starting length of the strip is 10cm
he cuts the first piece (4cm):10-4=6
that means there's 6cm left
he cuts the second piece (3cm):6-3=3
that means there's 3cm left
the answer is the third piece is 3cm long