The highest placeholder in a 4-digit number is the thousands place. You would want the smallest value in this place. If it was a zero, then it's not really a 4-digit number, anymore. The other places should also have the smallest numbers possible, but now you can use zeros, and it remain a 4-digit number. Or you could just say, that if you subtract 1 from 1000 you now have 999 which is no longer a 4-digit number.
The smallest four digit whole number is 1000.
1000
This depends on what you mean by smallest. The smallest four-digit whole number is 1,000; the smallest four-digit real number is .0001 (1/10,000); the smallest four-digit integer is -9,999.
The smallest four digit number is 1000. It is even so 1001 is the smallest four digit number that is odd.
The smallest four digit whole number is 1000.
1000
If you allow non integers, then your smallest four-digit number would be .0001. If you only allow integers, then your smallest four-digit number would be 1000. Your largest four-digit number would be 9999.
obviously it is 1000
Provided that the first digit cannot be 0, 1000 is the smallest number with four digits. Otherwise there are smaller numbers with 0 to thousandth digit such as 0100, 0050. The smallest integer in such instance is 0000.
2000.The smallest four-digit number there can be is 1000. So, add 1000 and 1000 to get 2000, then least sum you can get when adding two four-digit numbers.
23 x 53 = 1000
1000