4x9 = (4x5) + (4x )
8x9 = (8x5) + (8x )
9x7 = (9x5) + (9x )
9x6 = (9x ) + (9x1)
6x6 = (6x5) + ( x1)
8x3 = (8x ) + (8x1)
Solve 8x5 by decomposing and drawing arrays