PART 1: NUMBER AND DIGIT

Answer the questions

How many digits are there in the number 7,429?

Name the digits of the numbers 7,429?

How many digits are there in the number 264?

Name the digits of the numbers 264?

How many natural numbers having three digits such thatthe tens digit squared equals the product of other digits and the differencebetween that number and its reversed order is 495?
Answer: There are numbers.

How many natural numbers having three digits such that the tens digit squared equals the product of other digits and the difference between that number and its reversed order is 495?
Answer: There are numbers.

How many natural numbers having three digits such thatthe tens digit squared equals the product of other digits and the differencebetween that number and its reversed order is 495?
Answer: There are  numbers.

How many natural numbers having three digits such that the tens digit squared equals the
product of other digits and the difference between that number and its reversed order is 495?
Answer: There are numbers.

A,B,C,D,A+C,B+C,A+D,B+D represent 8 diffirent natural numbers from 1 to 8. If A is the largest number in the number from 1 to 8.Find A

How many natural numbers are there between 100 and 999 that unit-digit and tens-digit equal hundreds-digit ?

Choose 3 digits from 8, 6, 0, 5, 2 and 1 to form 3-digit numbers. How many odd numbers
are there? (The repetition of digits is not allowed)giúp me với

How many natural numbers between 1000 and 4000 are there for which the thousands digit equals the sum of the other three digits?

How many natural numbers having three digits such thatthe tens digit squared equals the product of other digits and the differencebetween that number and its reversed order is 495?
Answer: There are  numbers.

Ai trả lời nhanh mình tick cho$$