1 3 x 6 )- 1 2 3x 4 )= 5 July 8, 2019 16 32 64 128 1 2 3x 5 4 ≥ 1 3 x 6 3x 2 6 x 1 4 5x 1 3 3 5 2x 1 6 )- 4 3 3x 2 4 )- 1 5 x 2 3 )+ 1 5 0