temple run 2 memory problem

I have installed temple run 2 on android 6.0.1 and after the installation it has done downloading.
I have checked my internal memory and it was about 6,20Gbyte beffore the installation of temple run 2 my memory was I think 5,25 GByte
I have removed temple run 2
I have checked my memory again and my memory was still 6Gbyte: the remove didn't delete the downloaded files.
how can i delete the downloaded files?

I w deletedas not correct in the mean time i installed 10 apps so i used 350mbyte
So my memory before temple run 2 install was 5,6Gbyte and after temple run remove 5,9GByte
There is still 300 Mbyte downloaded files of temple run 2 that is not deleted