Answer
A number is answer to the question “How Many?” and A Numeral is a Symbol to represent that answer.
Work Step by Step
A Number is basically, answer to the question “How Many?”
For example – Suppose there are four books on a table. Someone asks a question that How Many Books are there on that table?
Then, answer to the question is Number is Four.
Numeral is (Hindu-Arabic Numeral)
Or
IV (Roman numeral) etc.
Numeral is a Symbol and Number is the Answer to the question “How Many?”