Questions: 19. What is the sum of the digits of the greatest 3-digit whole number and the digits of the smallest 4-digit whole number?
A) 27
B) 28
C) 36
D) 37
Transcript text: 19. What is the sum of the digits of the greatest 3-digit whole number and the digits of the smallest 4-digit whole number?
A) 27
B) 28
C) 36
D) 37
Solution
Solution Steps
Step 1: Identify the greatest 3-digit whole number
The greatest 3-digit whole number is \( 999 \).
Step 2: Identify the smallest 4-digit whole number
The smallest 4-digit whole number is \( 1000 \).
Step 3: Calculate the sum of the digits of both numbers
Sum of the digits of \( 999 \): \( 9 + 9 + 9 = 27 \).
Sum of the digits of \( 1000 \): \( 1 + 0 + 0 + 0 = 1 \).