10 2x 5 )= 30 July 8, 2019 16 32 64 128 5 2x 10 )+ 2 30 10 5 2x )= 30 4x 10 10 5 2x )= 30 4x 10 )/ 2 2x 5 x 1 )- 10 30 2x 10 2 x 2 5