7 10x 4 3 5 July 8, 2019 16 32 64 128 10x 5x 4 3 7 9 10x 4 15x 7 3 5 7 0.5 10x 4 )= 3 5x 6 7 5 10x 4 )= 3 5x 6 7 3 5x 4 1 10x 8 4 x 3 )+ 7 10x 5 7 x 10 5 x 7 = 35 7x10 5