1 2 3 x 2 7 9 July 8, 2019 16 32 64 128 1 2 x 1 3 5 x 2 7 9 Multiply 1 2 x 1 3 5 x 2 7 9 3 2 x 1 2 x 2 7 4 9 1 2 7 2 1 3x 3 14 x 9 2 3 x 4 9 1 2 3 7 x 0 2 2 3 x 1 7 9 0 2 1 + 1 = 2 + 2 = 3 1 3 9 27 pattern rule