Arizona Educator Proficiency Assessments (AEPA) Practice Exam 2026 – Your All-in-One Guide to Exam Mastery!

Question: 1 / 475

What is a common misconception about adding zero?

It changes the value of the number

It has no effect on the sum

The notion that adding zero to a number has no effect on the sum is a fundamental property of addition known as the additive identity property. This principle states that when zero is added to any number, the value of that number remains unchanged. For example, if you have the number five and you add zero to it (5 + 0), the result is still five. This property holds true across various sets of numbers, including integers, rational numbers, and real numbers.

This understanding helps clarify why confusion can exist around the concept of zero in addition. For instance, one might incorrectly assume that adding zero would alter the original number, which is a common misconception. By recognizing that the action of adding zero maintains the original value, learners can build a stronger foundation for understanding further mathematical concepts and operations.

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It is always negative

It is only applicable to whole numbers

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