5 x 5 2 90 July 8, 2019 16 32 64 128 5 x 7 * 5 x 2 90 5 1/2 = 90 х 5 5x 2 )= 90 5 x 5 x 5 x 5 x 5 5 x 5 x 5 5 x2
