Exponents, Computation Of Whole Numbers, Probability Of A Simple Event

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| By Lclewis01
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Lclewis01
Community Contributor
Quizzes Created: 1 | Total Attempts: 109
| Attempts: 109
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  • 1/9 Questions

    Evaluate: (0.5) to the second power.

    • 0.25
    • 25
    • 0.1
    • 10
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About This Quiz


This quiz is to review students on evaluating exponents, probability of simple events, and basic computation skills.

Exponents, Computation Of Whole Numbers, Probability Of A Simple Event - Quiz

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  • 2. 

    Evaluate: 5 to the third power.

    • 15

    • 125

    • 625

    • 8

    Correct Answer
    A. 125
    Explanation
    To evaluate 5 to the third power, we need to multiply 5 by itself three times. So, 5 to the third power is equal to 5 x 5 x 5, which equals 125.

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  • 3. 

        - 12 + - 5 =

    • 17

    • +17

    • - 17

    • -7

    Correct Answer
    A. - 17
    Explanation
    The given expression is a subtraction problem: -12 - 5. When subtracting a negative number, it is equivalent to adding its positive counterpart. So, -12 + (-5) is equal to -17.

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  • 4. 

    Jon had 3 red marbles, 7 black marbles, 9 green marbles, and 6 yellow marble in a bag. Without looking, what is the probability of Jon pulling out a green marble?

    • 9

    • 9/16

    • 9/20

    • 9/25

    Correct Answer
    A. 9/25
    Explanation
    The probability of Jon pulling out a green marble can be calculated by dividing the number of green marbles (9) by the total number of marbles in the bag (3 + 7 + 9 + 6 = 25). Therefore, the probability is 9/25.

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  • 5. 

    Evaluate: 1/2 to the third power

    • 1/4

    • 1-6

    • 1/8

    • 1/3

    Correct Answer
    A. 1/8
    Explanation
    To evaluate 1/2 to the third power, we need to multiply 1/2 by itself three times. When we do this, we get (1/2) * (1/2) * (1/2) = 1/8. Therefore, the correct answer is 1/8.

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  • 6. 

    75-( - 15) =

    • 60

    • 80

    • 90

    • -90

    Correct Answer
    A. 90
    Explanation
    The given expression is 75 - (-15). When subtracting a negative number, it is equivalent to adding the positive of that number. Therefore, -(-15) becomes +15. So, the expression simplifies to 75 + 15, which equals 90.

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  • 7. 

    -8 - ( + 7) =

    • 15

    • -15

    • -1

    • +1

    Correct Answer
    A. -15
    Explanation
    The given expression is -8 - (+7). The positive sign before 7 indicates that it is a positive number. When we subtract a positive number from a negative number, we add the absolute values and keep the sign of the larger number. In this case, the absolute value of -8 is 8 and the absolute value of +7 is 7. Adding them together gives us 15. Since -8 is the larger number and it is negative, the answer is -15.

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  • 8. 

    +2 + (+5)=

    • -8

    • +3

    • 8

    • -3

    Correct Answer
    A. 8
    Explanation
    The given expression is "2 + 5". When we add 2 and 5, the sum is 7. However, there is a positive sign in front of the 5, indicating that it is positive. So, the expression becomes "2 + (+5)" which is equivalent to "2 + 5". Therefore, the answer is 7.

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  • 9. 

    -7 -( -9)

    • -16

    • -2

    • +16

    • +2

    Correct Answer
    A. +2
    Explanation
    When subtracting a negative number, it is equivalent to adding the positive form of that number. In this case, we have -7 - (-9), which can be rewritten as -7 + 9. Adding these two numbers gives us 2, so the correct answer is +2.

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  • Current Version
  • Jan 06, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 24, 2013
    Quiz Created by
    Lclewis01
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