2 a 5 July 8, 2019 16 32 64 128 2 a 5 )= 6 2 a 5 )+ 10 2 a 50 2 a 5 1 2 a 5 3 2 a 5 )= 20 2 a 5 )- 4 2 a 500 2 a 5 )= 8 2 a 5 )= 12 2 a 5 7 2 a 52 2 a 55 2 a 54 2 5 a decimal
