7 5 x 1 3 2 8 July 8, 2019 16 32 64 128 1 2 3 x 4 5 6 7 8 9 8 7 6 5 x 4 3 2 1 2 5 x 1 3 x 7 8 as a fraction 80 3 7 5 x 2 1 2 4 5 x 1 3 7 x 3 1 8 5 x 3 )( x 7 )-( 5x 1 )( x 2 )= 8 5 x 7 = 35 (7 8−5 3)⋅1 2 (-5 7+1 8)*1 5