# How Many Eighths? Quiz: Test Your Calculation Skills

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Kasturi Chaudhuri
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Questions: 15 | Attempts: 14

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The How Many Eighths quiz is an exercise designed to assess one's understanding of fractional components, specifically focusing on the concept of eighths. This quiz comprises multiple-choice questions that require participants to determine the number of eighths in various whole and fractional numbers. Each question follows a consistent format, asking how many eighths are present in a given number, with detailed calculation-based explanations provided for each answer.
The underpinning of this quiz lies in its use of fundamental arithmetic operations, primarily multiplication, to convert whole numbers and fractions into their equivalent number of eighths. By multiplying the given number by eight, Read moreparticipants can ascertain the correct quantity of eighths. This type of quiz is particularly useful in educational settings for reinforcing the concept of fractions and ensuring that students can apply mathematical operations accurately. It also serves as a practical tool for honing problem-solving skills and numerical literacy, which are essential for more advanced mathematical studies.

## How Many Eighths? Questions and Answers

• 1.

### How many eighths are there in 3?

• A.

24

• B.

21

• C.

28

• D.

30

A. 24
Explanation
To find how many eighths are in 3, we use the concept that 1 whole is equal to 8 eighths. Therefore, 3 wholes are equal to 3 multiplied by 8 eighths.
Calculation:
1 whole = 8 eighths 3 wholes = 3 x 8 3 wholes = 24 eighths

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• 2.

### How many eighths are there in 5?

• A.

30

• B.

32

• C.

40

• D.

42

C. 40
Explanation
To find how many eighths are in 5, we multiply 5 by 8 because 1 whole is equal to 8 eighths.
Calculation:
1 whole = 8 eighths 5 wholes = 5 x 8 5 wholes = 40 eighths

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• 3.

### How many eighths are there in 7?

• A.

54

• B.

56

• C.

48

• D.

52

B. 56
Explanation
To determine how many eighths are in 7, multiply 7 by 8 since 1 whole equals 8 eighths.
Calculation:
1 whole = 8 eighths 7 wholes = 7 x 8 7 wholes = 56 eighths

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• 4.

### How many eighths are there in 2.5?

• A.

16

• B.

18

• C.

20

• D.

22

C. 20
Explanation
For 2.5 wholes, we need to calculate 2.5 multiplied by 8 because 1 whole is equivalent to 8 eighths.
Calculation:
1 whole = 8 eighths 2.5 wholes = 2.5 x 8 2.5 wholes = 20 eighths

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• 5.

### How many eighths are there in 6.25?

• A.

48

• B.

50

• C.

52

• D.

54

B. 50
Explanation
To find the number of eighths in 6.25, multiply 6.25 by 8.
Calculation:
1 whole = 8 eighths 6.25 wholes = 6.25 x 8
6.25 wholes = 50 eighths

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• 6.

### How many eighths are there in 10?

• A.

72

• B.

80

• C.

88

• D.

96

B. 80
Explanation
For 10 wholes, calculate 10 multiplied by 8 to find the number of eighths.
Calculation:
1 whole = 8 eighths 10 wholes = 10 x 8 10 wholes = 80 eighths

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• 7.

### How many eighths are there in 4.75?

• A.

34

• B.

36

• C.

38

• D.

40

C. 38
Explanation
To determine the number of eighths in 4.75, multiply 4.75 by 8.
Calculation:
1 whole = 8 eighths 4.75 wholes = 4.75 x 8 4.75 wholes = 38 eighths

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• 8.

### How many eighths are there in 1.5?

• A.

8

• B.

10

• C.

12

• D.

14

C. 12
Explanation
To find the number of eighths in 1.5, multiply 1.5 by 8.
Calculation:
1 whole = 8 eighths 1.5 wholes = 1.5 x 8 1.5 wholes = 12 eighths

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• 9.

### How many eighths are there in 8?

• A.

54

• B.

60

• C.

64

• D.

72

C. 64
Explanation
For 8 wholes, calculate 8 multiplied by 8 to find the number of eighths.
Calculation:
1 whole = 8 eighths 8 wholes = 8 x 8 8 wholes = 64 eighths

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• 10.

### How many eighths are there in 9?

• A.

70

• B.

72

• C.

74

• D.

76

B. 72
Explanation
To find the number of eighths in 9, multiply 9 by 8.
Calculation:
1 whole = 8 eighths 9 wholes = 9 x 8 9 wholes = 72 eighths

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• 11.

### How many eighths are there in 0.5?

• A.

2

• B.

4

• C.

6

• D.

8

B. 4
Explanation
For 0.5 wholes, calculate 0.5 multiplied by 8.
Calculation:
1 whole = 8 eighths 0.5 wholes = 0.5 x 8 0.5 wholes = 4 eighths

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• 12.

### How many eighths are there in 12?

• A.

80

• B.

88

• C.

94

• D.

96

D. 96
Explanation
To determine the number of eighths in 12, multiply 12 by 8.
Calculation:
1 whole = 8 eighths 12 wholes = 12 x 8 12 wholes = 96 eighths

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• 13.

### How many eighths are there in 1.25?

• A.

8

• B.

9

• C.

10

• D.

12

A. 8
Explanation
To find the number of eighths in 1.25, multiply 1.25 by 8.
Calculation:
1 whole = 8 eighths 1.25 wholes = 1.25 x 8 1.25 wholes = 10 eighths

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• 14.

### How many eighths are there in 11?

• A.

82

• B.

86

• C.

88

• D.

90

C. 88
Explanation
For 11 wholes, calculate 11 multiplied by 8.
Calculation:
1 whole = 8 eighths 11 wholes = 11 x 8 11 wholes = 88 eighths
So, the correct answer is C. 88

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• 15.

### How many eighths are there in 0.75?

• A.

4

• B.

5

• C.

6

• D.

7

C. 6
Explanation
To determine the number of eighths in 0.75, multiply 0.75 by 8.
Calculation:
1 whole = 8 eighths 0.75 wholes = 0.75 x 8 0.75 wholes = 6 eighths

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• Current Version
• Jul 17, 2024
Quiz Edited by
ProProfs Editorial Team
• Jul 09, 2024
Quiz Created by
Kasturi Chaudhuri

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