Count the total number of squares in the figure. Then count how many squares are already shaded.<br><br>For \(\frac{4}{5}\) of the figure to be shaded, the number of shaded squares must be \(\frac{4}{5} \times\) total squares.<br><br>Subtract the number of already-shaded squares from the required number to find how many more must be shaded.<br><br>Final Answer: 5