Question

When a whole number is subtracted from another whole number, which of the following is correct?

• A. The resulting number is always a whole number
• B. The resulting number is always zero
• C. The resulting number is an integer
• D. The resulting number is always a natural number

Answer 1

The correct option is C The resulting number is an integer

When two whole numbers are added, the result is always a whole number. But, the converse is not correct all the time.
For example, if you subtract 5 from 2, the result is -3, which is not a whole number but an integer. Also, zero is an integer.
Hence, it is better to say the number is an integer.