Largest and Smallest Numbers

1. Largest One-digit Number

• The largest one-digit number is 9.
• Explanation: If you add 1 to 9, you get 10, which is the smallest two-digit number.

2. Largest Three-digit Number

• The largest three-digit number is 999.
• Explanation: If you add 1 to 999, you get 1000, which is the smallest four-digit number.

3. Largest Seven-digit Number

• The largest seven-digit number is 9999999.
• Explanation: If you add 1 to 9999999, you get 10000000, which is the smallest eight-digit number.

Pattern Formed:

• The largest number of n digits + 1 = the smallest number of (n + 1) digits.

Examples:

1. The largest 3-digit number is 999, and adding 1 gives 1000, which is the smallest 4-digit number.
2. The largest 5-digit number is 99999, and adding 1 gives 100000, which is the smallest 6-digit number.
   

1. Smallest Two-digit Number

• The smallest two-digit number is 10.
• Explanation: If you subtract 1 from 10, you get 9, which is the largest one-digit number.

2. Smallest Five-digit Number

• The smallest five-digit number is 10000.
• Explanation: If you subtract 1 from 10000, you get 9999, which is the largest four-digit number.

Pattern Formed:

• The smallest number of n digits − 1 = the largest number of (n − 1) digits.

Examples:

1. The smallest 3-digit number is 100, and subtracting 1 gives 99, which is the largest 2-digit number.
2. The smallest 6-digit number is 100000, and subtracting 1 gives 99999, which is the largest 5-digit number.
   

Largest Numbers: Adding 1 to the largest number of n digits gives the smallest number of (n + 1) digits.

• Example: 999 + 1 = 1000, 99,999 + 1 = 100,000.

Smallest Numbers: Subtracting 1 from the smallest number of n digits gives the largest number of (n - 1) digits.

• Example: 100 - 1 = 99, 100,000 - 1 = 99,999.