432,000 makes up the smallest number

Test Points: How to read and write integers.

Special Topic: Understanding Integers.

Analysis: If you want to make up the largest number, you must rank the numbers from high to low in order from large to small;

In order to form the smallest number, the number should be ranked from high to low in order from smallest to largest, but the highest number cannot be zero;

According to the reading of "zero" in integers, the 0 at the end of each level is not read, and the rest of the digits are only read as a zero for several consecutive zeros. In order to read only one "zero", there must be a 0 or several consecutive zeros that cannot be written at the end of each level; In order to read two "zeros", there must be two or two sets of zeros that cannot be written at the end of each level and cannot be next to each other; Write accordingly

Answer: Solution: (1) The maximum six-digit number that is not read by a 0: 432000;

2) A minimum six-digit number that is not read by 0: 203400;

3) Read only the maximum six digits of a 0: 430200;

4) Read only the smallest six digits of a 0: 200034;

5) Read the maximum six-digit 400302 of two zeros

So the answer is: 432000; 203400；430200；200034；400302．

Comments: This question is to test the reading and writing of integers, and the graded reading, writing or reading and writing numbers with a digital table can better avoid reading and writing errors 0 Note that the answer is not unique

1.The question requires a minimum of five digits, and the smallest of the five digits provided is 0, but the first smallest number must be 2

2.The problem requires that only one 0 can be read, so the two zeros are either next to each other in the middle, or one of them appears at the end and becomes a single digit.

3.Through the second line of thought, it can be known that if you want the number to be the smallest, then the two numbers 2 and 2 cannot be next to each other, that is, 20,000 and a few hundred or when is the best.

4.Through the three ideas of the old tomb, the following numerical results can be obtained: 5The smallest arrangement of the five numbers rolls with a grip of 20046

This is a high school math problem. First of all, you have 6 numbers to make up four digits, less than 3000,. Only 4 numbers can be selected, and the first digit can not be 0, only , and the remaining numbers can be any combination, =c1 2*c3 5, which is 2*5*4*3 (3*2*1)=200.

Smaller than 3000, the thousand digits are 1 or 2

If there are two hundreds, you can choose from the remaining 4 numbers.

Ten digits can be selected from the remaining 3 numbers.

The single digit can be selected from the remaining 2 numbers.

So it can be made up of 48.

The minimum is the book change plus the decimal point.

Difference without decimal points.

It's not covered 00124

The difference is 41976

I hope that the state judgment can help you.

3*3*3*3=81.

Explanation: Thousands, hundreds, tens, three options in each of the four positions, 0, 1, 3

So there are 3*3*3*3=81.

Thousands only

There are 3 types of hundreds, 10 places, and 3 single places.

So 2*3*3*3=54 species.

3*3*3*3=81.

Explanation: Thousands, hundreds, tens, three options in each of the four positions, 0, 1, 3

So there are 3*3*3*3=81.

From 1 to 100, there are 10 single digits with 4, that is, 400,000 units with 2 with 4 and 4 with single digits.

4000000, so from 1 to 4 million numbers, 1 in 1 to 100 44; 100*10=400,000, according to the above method 1,44 there are 4 million 100 = 40,000.

3, so from 1 to 4 million figures.

44444 * 440 + 4444 + 444 + 44 + 4 = 19560296 10,000 digits is 6

This question only asks 10,000 digits, and has nothing to do with more than 100,000 digits, so just remove all the characters above 100,000 digits from item 6.

The result is the sum of 440 44444 and a 4444, a 444, a 44, and a 4.

A single digit is one out of every 10 digits of a number (e.g. 4), i.e. 4000000 10 400000

The tens and single digits are one in every 100 digits of a certain number (e.g. 44), i.e. 4000000 100 40000

And so on.

The first six digits have 4x120=480, so there are 480.