A 3-digit number is a multiple of 2.3.5, and the number in the 100 digit number is 7 larger than that in the 10 digit number. What is the number?

A 3-digit number is a multiple of 2.3.5, and the number in the 100 digit number is 7 larger than that in the 10 digit number. What is the number?

A 3-digit number is also a multiple of 2.3.5. And the number in the 100 digit number is 7 larger than that in the 10 digit number. This number is 810

A three digit number is also a multiple of 2 and 5. The sum of the numbers in each digit is 3. What is the possible number?

First calculate the least common multiple of 2, 5 and 3, and it will be 30
So I get a difference of 30 between each two numbers
For example: 30, 90, 120, 150, 180, 210, etc

A number is a multiple of 3 and has four digits. The number on the thousand digit is twice that on the ten digit, and the number on the hundred digit is 0. There are () such numbers

16 in total
2010 2013 2016 2019
4020 4023 4026 4029
6030 6033 6036 6039
8040 804308046 8049

0123456789 how many three digit numbers can be divided by 3 without repetition

From 0, 1, 2 The absolute value of the difference between one digit number and one hundred digit number is 8______ One

According to the meaning of the question, there are two situations in which the absolute value of the difference between 0 and 9 is equal to 8: 0 and 8, 1 and 9. There are two situations to discuss: ① when the number of individual and hundred is 0 and 8, there is a82a22; ② when the number of individual and hundred is 1 and 9, there is a71a71a22. A total of a82a22 + a71a71a22 = 210, so the answer is 210

If the absolute value of the difference between one digit and one thousand digit is equal to 2, the number of four digits is zero

There are 3 × 9 × 8 = 216 qualified numbers with thousand digits of 1, 8 and 9
There are 6 × 9 × 8 × 2 = 864 qualified numbers whose thousand digits are 2,3,4,5,6,7
The number of four digits is 216 + 864 = 1080, and the absolute value of the difference between one digit and one thousand digit is equal to 2

Use 0, 1, 2, 3 and 9 to form a four digit number without repetition. If the absolute value of the difference between the thousand digit number and the one digit number is 2, how many four digits are there

7 * 8 * 8 * 8 = 3584 species

The absolute value of the difference between one digit and one hundred digit is equal to 8 in the four digit number without repetition, which is composed of 0, 1, 2 and 9
How many single digits are there
How many of the four digit numbers composed of 0,... 9 and without repetition, the absolute value of the difference between one digit number and one hundred digit number is equal to 8
Sorry, wrong number

First of all, 8-0 = 8, 9-1 = 8 and absolute value, so it can be reversed, so there are four kinds. The remaining two bits are randomly arranged
In addition to the two numbers of you and the hundred, there are also eight numbers. Therefore, according to the permutation and combination, you can easily get (you can also row in a row, very simple) that there are (7 + 6 + 5 + 4 + 3 + 2 + 1) * 2 = 56 kinds of 0,8
1,9 (6 + 5 + 4 + 3 + 2 + 1) * 2 + 7 = 49 (multiply by 2 because it can be reversed, and you have to consider that 0 can't be placed first, it can't be reversed, so you can only add 1 7)
Because the absolute value can be reversed, so (56 + 49) * 2 = 210
Look at me so fast, so complete, give it to me

Use the eight numbers 1-8 to form two different four digit numbers so that their difference is 4444
12

7856-3412=4444
7685-3241=4444
7586-3142=4444
6857-2413=4444
6578-2134=4444
6785-2341=4444
5876-1432=4444
5867-1423=4444
5678-1234=4444
5786-1342=4444

In a subtraction formula, we know that the sum of the difference between the subtracted number and the subtracted number is 900, and we know that the subtracted number is four times the difference. What are the subtracted number and the difference?

900 / (4 + 1) * 2 = 900 / 10 = 90 * 4 = 360 subtraction is 360 difference is 90