Difference of the Smallest 6 Digit Number and the Greatest 4 Digit Number is__

The Difference of the smallest 6-digit number and the greatest 4-digit number is 90001. Meaning the correct option is C. 90001. 

Complete Answer: Breaking Down the Problem

Step 1: Identify the Smallest 6-Digit Number

The smallest 6-digit number is 100000. This is because a 6-digit number begins from 100000 and goes up to 999999.

Step 2: Identify the Greatest 4-Digit Number

The greatest 4-digit number is 9999, as the range of 4-digit numbers is from 1000 to 9999.

Step 3: Find the Difference

The difference is calculated by subtracting the greatest 4-digit number from the smallest 6-digit number: 

100000−9999=90001

Why the answer is C. 90001

1. Smallest 6-Digit Number (100000):

This is the first number in the 6-digit range, making it the smallest.

2. Greatest 4-Digit Number (9999):

This is the last number in the 4-digit range, making it the greatest.

3. Subtraction: 

Performing the subtraction gives us the precise difference:
100000−9999=90001

The difference between the smallest 6-digit and the greatest 4-digit number is 90001. Problems like these help sharpen arithmetic and logical reasoning skills, essential for competitive exams and practical calculations.