4(1 2b 3 7) - 2 8 = 5 2b July 8, 2019 16 32 64 128 4 1 2b 3 7 )- 2 8 5 2b 2 + 3 + 4 + 5 + 6 + 1 + 2 + 3 + 4 + 5