College Math Placement Practice Test

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What is the value of 5²?

  1. 15

  2. 20

  3. 25

  4. 30

The correct answer is: 25

To determine the value of 5², you need to understand what the notation means. The expression 5² indicates that you are multiplying the number 5 by itself. This can be calculated as follows: 5 × 5 = 25. Therefore, the value of 5² is 25. This aligns with the choice of 25, which is the correct answer. Understanding exponents is critical in mathematics, as they signify repeated multiplication of a number. In this case, since 5 is used as the base and 2 is the exponent, it illustrates a simple yet fundamental concept that appears frequently in various mathematical contexts.

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