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Which statement is TRUE for the set of rational numbers?
ASubtraction is commutative
BDivision is commutative
CAddition is associative
DSubtraction is associative
Answer & Solution
Correct answer: C. Addition is associative
For any three rationals a, b, c: a + (b + c) = (a + b) + c, so addition is associative. Subtraction and division are neither commutative nor associative for rational numbers.
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