Which operation can take two whole numbers and fail to give a whole number?
AAddition
BMultiplication
CSubtraction
DAdding zero
Answer & Solution
Correct answer: C. Subtraction
1. Whole numbers are closed under addition and multiplication, so those always stay whole.
2. Subtracting a larger number from a smaller one gives a negative number.
3. So subtraction is the operation that can leave the set.
_Source: Wikipedia, Natural number, Relationship between addition and multiplication_
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