Question

What is the generalized form of 89

Answer 1

Generalized form 89 is $8\times 10+9\times 1$
For any two digit number ab
Generalized form is given as $a\times 10+b\times 1$
similarly for 3 digit number abc,
Generalized form is given as $100\times a+10\times b+1\times c$