7 3 x 27 5 July 8, 2019 16 32 64 128 5 x 7 )= 3 x 4 )- 27 7 3x 27 =- 3 5x 17 3 7 x 27 5 x 81 3 2x 27 =- 3 x 5 )+ 7 3 7 x 4 5 x 14 27 5 x 7 = 35