6 x 15 45 July 8, 2019 16 32 64 128 6 15 х 45 )= 300 6 0 x 15 et45 0 6 15 x 45 66 91 6 x 4 )+ 45 9x 15 45 (- 15 6 x 16 15 x 40 6 x 45
