1 2 x 6 x 9 x 7 July 8, 2019 16 32 64 128 1 x 25 x 6 x 7 9 2 5 3x 15 1/2 x 9 x 6 1-9 математика 7 6 / x = 2 1/9 / 2 * 4/9 1/2 x 6 x 7
