Generalised form of a three-digit number abc is
100a + 10b + c
100a + 10c + b
a + 10b + 100c
a + b + c
Generalised form of a three-digit number abc is 100×a + 10×b + c
Generalised form of a three-digit number abcis:
3 digit number abc is represented as 100a + 10b + c.