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From left to right, pick the smallest possible digit every time. This will give you the smallest possible number.
The smallest four digit number is 1000. It is even so 1001 is the smallest four digit number that is odd.
The smallest even 4-digit number using the digits 5, 7, 4, and 9 is 4579. To create the smallest number, we start by placing the smallest digit, which is 4, in the thousands place to ensure it is a 4-digit number. Since we need to make it an even number, the units place must be an even number, so we use 4. Placing 5 in the hundreds place and 7 in the tens place gives us the smallest even 4-digit number, 4579.
1000
100012
The smallest is 1111 if repeats are allowed. If not, it is 1235.
12346
if u were to use all the numbers as one 4 digit number, the smallest number would be 4579. if u were to add or subtract them, the smallest number would be -17
1243
-7510 is the smallest.
The least 4-digit number you can make with the digits 4, 7, 6, and 0 is 4067. To form the smallest number, you should start with the smallest non-zero digit, which is 4, followed by the next smallest digits arranged in ascending order.
11,111If you don't want to use any digit more than once, then it's 13,579 .