0258 In general, the smallest number is created by taking the smallest number in the given set of numbers and placing it in the leftmost digit place. Then take the next smallest number in the set and put it one digit to the right of the first. Repeat until you have the number of digits you are looking for.
4
The smallest four digit number is 1000. It is even so 1001 is the smallest four digit number that is odd.
11,111If you don't want to use any digit more than once, then it's 13,579 .
9876 is the largest four digit number you can make if all the digits must be different.
00000 or 11111
Including the leading zero, the smallest number you can make from the digits 03418 is 01348. Without the leading zero in the ten thousands column, the smallest number you can form from the digits 03418 is 10348.
In order to make the smallest possible number with a set of digits, you want the least valued number in the greatest valued place. For 5 digits, you would want the least digit, 0, in the ten thousands place. You would then want the second least digit, 3, in the thousands place, and so on. For the digits 0,3,5,7,9 the smallest possible number would therefore be 03,579 or 3,579.
.0123
0258 In general, the smallest number is created by taking the smallest number in the given set of numbers and placing it in the leftmost digit place. Then take the next smallest number in the set and put it one digit to the right of the first. Repeat until you have the number of digits you are looking for.
4
The smallest four digit number is 1000. It is even so 1001 is the smallest four digit number that is odd.
11,111If you don't want to use any digit more than once, then it's 13,579 .
200992
1 The largest five-digit number is 99999 and the smallest six-digit number is 100000, so the difference is one. If you're just looking for an answer to a homework question, that's all you need. For the brainy: Suppose the answer was greater than one. That would mean that there are one or more numbers between the largest five-digit number and the smallest six-digit number that cannot be written with either five or six digits. Either they would have to be written with four or fewer digits, which would make them smaller than any five-digit number, or with seven or more digits, which would make them larger than any six-digit number. If the answer was less than one, it would mean that it would be possible to have a five digit number that was greater than a six-digit one. So the answer must be one.
9876 is the largest four digit number you can make if all the digits must be different.
1000