q explain about decimal numbersdecimal number

Question

^{Q. Explain about Decimal Numbers?}

Decimal number system has 10 digits signified by 0,1,2,3,4,5,6,7,8 and 9. Any decimal number can be signified as a string of these digits and because there are 10 decimal digits hence base or radix of this system is 10.

So a string of number 234.5 can be represented as:

2 × 10² + 3 × 10¹ + 4 × 10⁰ + 5 × 10^-1