1 1 6 x 5 3 8 July 8, 2019 16 32 64 128 3x 1 5 5x 1 6 x 1 8 3 1 7 8 x 3 5 1 6 1 5/8 x 6 1 8 + 5 6 1) 6 + 3 =1 8*5 1 5 ×6 1 1/8 - 3 5/6