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Question

Subtraction is associative for:

A
Whole numbers
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B
None of the above
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C
Integers
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D
Rational numbers
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Solution

The correct option is B None of the above

An associative operation is a calculation that gives the same result regardless of the way the numbers are grouped.
3 - (2 - 5) = 6 and (3 - 2) - 5 = - 4.
3 - (2 - 5) (3 - 2) - 5.

So, subtraction is not associative for whole numbers.
Similarly, it is not associative for integers and rational numbers also.


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