2 7 2x3 ) 4 1 5 July 8, 2019 16 32 64 128 2 7 2x3 )+ 4 1 5 2 7 2x3 )+ 4 over 1 5 2 7 2x3 )+ 4 divided by 1 5 1 2 7 х 2 3 5 х 2 1 4