Consider the number 4027. If I switch the digits in the tens and thousands place, what would be the resulting number?

• A. 2047
• B. 2407
• C. 4027
• D. 4207

Answer: (A)

Swapping digits in different place values changes the number by moving digits to their new place values. In 4027, the thousands digit is 4 and the tens digit is 2. Swapping them puts 2 in the thousands place and 4 in the tens place, giving 2047. The other numbers reflect swapping different pairs of digits (for example, swapping thousands and hundreds would produce 2407, and swapping hundreds and tens would produce 4207), while 4027 is the original number with no swap.