How do you write 335 in decimal notation?

Answer 1

It is 335, exactly as in the question.

A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. Adding zeros after the decimal point is wrong because they imply a degree of accuracy (significant figures) for which there is no justification.

Answer 2

The decimal notation for 335 is simply 335.