6 x 4 4 2 July 8, 2019 16 32 64 128 6 x 4 )= 4 2x 5 6 x 4 3x 4 2 6 4 x 3 4 2 6 x 1 4 2x 4 6 x 4 )= 20 6 x 4 24 6 x 4 2x 6 x 4 2 9 6 x 4 25 6 x 4 21 6 x 4 28 6 x 4 )-( 2 4x 6 x - 4 = 26 6 x 4 2x 8 6 x 4 2 7