6 5 4 15 3 July 8, 2019 16 32 64 128 6 5 2 3v 4 15 1 3v 5 6 2x 4 )= 3x 4x 15 6 5 x 8 3 x 15 4 5a 5 15 3a 6 4 6 5 times 8 3 times 15 4
