Exponents, Computation Of Whole Numbers, Probability Of A Simple Event
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Evaluate: 1/2 to the third power
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1/4
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1-6
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1/8
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1/3
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This quiz is to review students on evaluating exponents, probability of simple events, and basic computation skills.
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- 2.
Evaluate: 5 to the third power.
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15
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125
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625
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8
Correct Answer
A. 125Explanation
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.Rate this question:
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- 3.
Evaluate: (0.5) to the second power.
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0.25
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25
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0.1
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10
Correct Answer
A. 0.25Explanation
To evaluate (0.5) to the second power, we need to multiply 0.5 by itself. When we do this, we get 0.25 as the result.Rate this question:
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- 4.
+2 + (+5)=
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-8
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+3
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8
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-3
Correct Answer
A. 8Explanation
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.Rate this question:
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- 5.
- 12 + - 5 =
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17
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+17
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- 17
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-7
Correct Answer
A. - 17Explanation
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.Rate this question:
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- 6.
-7 -( -9)
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-16
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-2
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+16
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+2
Correct Answer
A. +2Explanation
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.Rate this question:
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- 7.
-8 - ( + 7) =
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15
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-15
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-1
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+1
Correct Answer
A. -15Explanation
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.Rate this question:
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- 8.
75-( - 15) =
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60
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80
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90
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-90
Correct Answer
A. 90Explanation
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.Rate this question:
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- 9.
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?
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9
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9/16
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9/20
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9/25
Correct Answer
A. 9/25Explanation
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.Rate this question:
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Current Version
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Jan 06, 2025Quiz Edited by
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Jan 24, 2013Quiz Created by
Lclewis01
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