| Smallest one Digit Number |
1 – The smallest digit is 1. |
| Greatest One Digit Number |
9 – The greatest digit is 9. |
| Smallest Two Digit Number |
10 – The smallest digit is 1. We write a zero for each of the other places. So, the smallest 2 digit number is 10. |
| Greatest Two Digit Number |
99 – The greatest digit is 9. We write nine for each of the other places. So, the greatest 2 digit number is 99. |
| Smallest Three Digit Number |
100 – The smallest digit is 1. We write a zero for each of the other places. So, the smallest 3 digit number is 100. |
| Greatest Three Digit Number |
999 – The greatest digit is 9. We write nine for each of the other places. So, the greatest 3 digit number is 999. |
| Smallest Four Digit Number |
1000 – The smallest digit is 1. We write a zero for each of the other places. So, the smallest 4 digit number is 1000. |
| Greatest Four Digit Number |
9999 – The greatest digit is 9. We write nine for each of the other places. So, the greatest 4 digit number is 9999. |
| Smallest Five Digit Number |
10000 – The smallest digit is 1. We write a zero for each of the other places. So, the smallest 5 digit number is 10000. |
| Greatest Five Digit Number |
99999 – The greatest digit is 9. We write nine for each of the other places. So, the greatest 5 digit number is 99999. |