A rectangle measures $$4.5$$ $$\text{cm}$$ by $$6.2$$ $$\text{cm}$$.  Calcuate its perimeter.  ~\uline{~~~~~~~~~~}~$$\text{cm}$$ 
Overseas Competition->Knowledge Point->Geometry Modules->Objects with Straight Sides->Knowing Graphs->Rectangles and Squares->Perimeter of Rectangle Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Addition and Subtraction of Decimals->Addition of Decimals