Question

The expanded form of a 3-digit number abc is

• A. 100a + 10b + c
• B. 100a + 10c + b
• C. 100c + 10b + a
• D. a + b + c

Answer 1

The correct option is A

100a + 10b + c

abc is a 3-digit number, where:
• a is the hundreds digit
• b is the tens digit
• c is the ones digit
Therefore, the expanded form of a 3-digit number abc is 100a + 10b + c.