No. Numbers are like words, and digits are like letters. A single numeric character is a digit. A single digit or character stands for a number of that value, just as you can have a one-letter word.
There are only ten digits in all: 0 1 2 3 4 5 6 7 8 9. They can be arranged in any combination and quantity, and the result is a number--a grouping of symbols that represents a value. 2, 79, 8407, and 91827365149307 are all numbers, and each of them is made up of digits. Only the first of those is both a number and a digit.
u cant
This cannot be answered. This will have to be written to where it can be understood.
I assume you mean how many 4-digit numbers can be made from a set such as {A,A, B, C} where A, B and C are single digits. There are 12 such numbers.
There are 900 of them.
If I understand the question correctly, the digits 1, 2, 3, 4 and 5 appear the same number of times.
The same thing its just digits
Answer: There are six. Answer: There is no such thing as "significant numbers". I assume you mean "significant digits". All digits are significant in this case - a zero (or more than one zero) between other digits is always significant.
987654
yes ex. 12345,54321,34251,51324 etc. or an easy example 12,21
u cant
This cannot be answered. This will have to be written to where it can be understood.
They are both 4554454 with the same digits in the same order and position so they are the same number.
I assume you mean how many 4-digit numbers can be made from a set such as {A,A, B, C} where A, B and C are single digits. There are 12 such numbers.
u cant
There are 900 of them.
It is 987654321.
2