3 3 8 x 4 2 9 July 8, 2019 16 32 64 128 X 3 4 8 x 3 2 9 0 15 x 3 9 8 3 x 4 2 3 2 x 3 4 )= 99 8 3 4 x 2 3 9 45 8 x 0 07 3 8×9 4 3 x 3 = 9