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Question

If a is any whole number, then a + __ = a .

A

a
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B

0
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C

-a
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D

2a
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Solution

The correct option is B
0
0 is the additive identity for whole numbers.
Additive identity of whole numbers is the whole number which, when added to another whole number, results in the whole number to which it was added.
0 is the additive identity as a + 0 = a.

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