Chapter 2 Quiz (2-1 & 2-2)
Wednesday's test will have problems similar to the ones listed below. If you do well on this practice test, you should do well on the actual test. Let's rock this thing!
Questions and Answers
- 1.
Find the factors of 32.
- A.
1, 2, 4, 5, 10, 20
- B.
1, 2, 4, 8, 16, 32
- C.
32, 64, 96
- D.
1, 2, 6, 32
Correct Answer
B. 1, 2, 4, 8, 16, 32Explanation
The factors of a number are the numbers that can be multiplied together to get that number. In this case, the factors of 32 are 1, 2, 4, 8, 16, and 32. These numbers can be multiplied in different combinations to equal 32. For example, 2 multiplied by 16 equals 32, or 4 multiplied by 8 equals 32. Therefore, the given answer of 1, 2, 4, 8, 16, 32 is correct.Rate this question:
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- 2.
Simplify
- A.
9
- B.
3
- C.
27
- D.
6
Correct Answer
C. 27Explanation
The given numbers 9, 3, 27, and 6 are all multiples of 3. However, only 27 is not divisible by 9. Therefore, the number 27 is the only one that cannot be simplified further by dividing it by 9, making it the correct answer.Rate this question:
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- 3.
Which of the following numbers is prime?
- A.
18
- B.
9
- C.
68
- D.
13
Correct Answer
D. 13Explanation
A prime number is a number that is only divisible by 1 and itself. Among the given numbers, 13 is the only one that meets this criteria. 18 is divisible by 1, 2, 3, 6, 9, and 18. 9 is divisible by 1, 3, and 9. 68 is divisible by 1, 2, 4, 17, 34, and 68. Therefore, the only prime number among the options is 13.Rate this question:
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- 4.
Find the Least Common Multiple (LCM) of 9 and 12.
- A.
46
- B.
4
- C.
3
- D.
36
Correct Answer
D. 36Explanation
Make sure you don't mix up LCM with GCF.
Multiples of 9: 9, 18, 27, 36, 45...
Multiples of 12: 12, 24, 36, 48...
Least common multiple = 36Rate this question:
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- 5.
Simplify
- A.
200
- B.
88
- C.
48
- D.
52
Correct Answer
B. 88 -
- 6.
Simplify
- A.
256
- B.
-256
- C.
16
- D.
8
Correct Answer
A. 256Explanation
Remember to watch your signs
-4 x -4 x -4 x -4
16 x -4 x -4
-64 x -4
256Rate this question:
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- 7.
Find the greatest common factor (GCF) of 12 & 15.
- A.
8
- B.
2
- C.
4
- D.
3
Correct Answer
D. 3Explanation
The greatest common factor (GCF) is the largest number that divides evenly into both 12 and 15. To find the GCF, we can list the factors of both numbers and find the largest number that appears in both lists. The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 15 are 1, 3, 5, and 15. The largest number that appears in both lists is 3, so the GCF of 12 and 15 is 3.Rate this question:
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- 8.
Simplify
- A.
3
- B.
6
- C.
1
- D.
7
Correct Answer
A. 3 -
- 9.
Write the prime factorization for 60.
- A.
4 x 15
- B.
2 x 30
- C.
2 x 2 x 3 x 5
- D.
2 x 5 x 3
Correct Answer
C. 2 x 2 x 3 x 5Explanation
Remember to use a factor tree.Rate this question:
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- 10.
Do you know how to draw a factor tree? There will be one on the quiz.
- A.
Yes
- B.
No
Correct Answer
A. YesExplanation
The question asks whether the person knows how to draw a factor tree and states that there will be one on the quiz. The answer "Yes" indicates that the person does know how to draw a factor tree.Rate this question:
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- 11.
Write 6 x 6 x 6 x 6 x 6 as an exponent.
- A.
![Chapter 2 Quiz (2-1 & 2-2) - Quiz]()
- B.
![Chapter 2 Quiz (2-1 & 2-2) - Quiz]()
- C.
![Chapter 2 Quiz (2-1 & 2-2) - Quiz]()
- D.
7776
Correct Answer
C.Explanation
To write 6 x 6 x 6 x 6 x 6 as an exponent, we need to determine the number of times 6 is multiplied by itself. In this case, 6 is multiplied by itself 5 times. Therefore, 6 x 6 x 6 x 6 x 6 can be written as 6^5, which equals 7776.Rate this question:
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Mar 21, 2023Quiz Edited by
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Sep 28, 2012Quiz Created by
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