A stick has a length of 12.132cm and Another stick has a length of 12.4cm. If the two sticks are placed end to end what is their total length?

Let the lengths of the sticks are l1=12.132cm,  l2=12.4cm Here  has one decimal place and l1 has to be rounded off to have only two decimal places.  l1+l2=12.13+12.4=24.53This is to be rounded off to have one decimal place only.The total length is 24.5cm