What Are The Properties Of Numbers?

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| By Jaksiboy

Jaksiboy

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Quizzes Created: 832 | Total Attempts: 12,196,345

Questions: 10 | Attempts: 187 | Updated: Mar 18, 2023

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What Are The Properties Of Numbers? - Quiz

A number is a mathematical object used to count, measure, and label. What more things do you know about the number? Come on take this quiz and have fun.

Questions and Answers

1.

Which of the following is known as a notation that represents a number?
- A.
  
  Numerals
- B.
  
  Digits
- C.
  
  Class
- D.
  
  Objects
Correct Answer
A. Numerals

Explanation
Numerals are a notation system used to represent numbers. They are symbols or characters that are used to express numerical quantities. In contrast, digits refer to the individual symbols used in numeral systems, such as 0, 1, 2, etc. Class and objects are not directly related to representing numbers.

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2.

A=b. which of the following best describes the equation above?
- A.
  
  Reflexive property
- B.
  
  Symmetry property
- C.
  
  Commutative property
- D.
  
  None of the above
Correct Answer
A. Reflexive property

Explanation
The equation "a=b" represents the reflexive property because it states that "a" is equal to "b", which means that "a" is equal to itself. The reflexive property states that any element is equal to itself, so this equation satisfies that property.

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3.

If a+b=c, then c= a+b. Which of the following best describes the above equation?
- A.
  
  Reflexive
- B.
  
  Symmetric
- C.
  
  Commutative
- D.
  
  Transitive
Correct Answer
B. Symmetric

Explanation
The given equation states that if a+b equals c, then c equals a+b. This implies that the order of the terms does not matter. If a is added to b, it will always result in the same value, regardless of the order in which they are added. This property is known as symmetry, making "Symmetric" the best description for the equation.

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4.

If a=b,b=c then a=c. Which of the following best describes the equation above?
- A.
  
  Symmetry
- B.
  
  Reflexive
- C.
  
  Transitive
- D.
  
  Commutative
Correct Answer
C. Transitive

Explanation
The given equation states that if a is equal to b, and b is equal to c, then a must also be equal to c. This is the definition of transitivity, where a relationship between three elements holds true if it holds true for any two pairs of those elements.

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5.

A*b=b*a. which of the following equations best descibes the above equation?
- A.
  
  Commutative
- B.
  
  Transitive
- C.
  
  All of the above
- D.
  
  None of the above
Correct Answer
A. Commutative

Explanation
The equation a*b=b*a is an example of the commutative property of multiplication. This property states that the order of the numbers being multiplied does not affect the result. In other words, when multiplying two numbers, you can swap their positions and still get the same answer. Therefore, the correct answer is "Commutative."

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6.

Which of the following notation represents a natural number?
- A.
  
  A
- B.
  
  N
- C.
  
  Z
- D.
  
  R
Correct Answer
B. N

Explanation
The notation "N" represents a natural number. Natural numbers are the set of positive integers starting from 1 and extending to infinity. The letter "N" is commonly used to denote this set in mathematics.

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7.

Which of the following notation represent a complex number?
- A.
  
  A
- B.
  
  Z
- C.
  
  C
- D.
  
  N
Correct Answer
C. C

Explanation
The notation "C" represents a complex number. Complex numbers are numbers that can be expressed in the form a + bi, where "a" and "b" are real numbers and "i" is the imaginary unit. The "C" notation is commonly used in mathematics to denote the set of complex numbers.

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8.

Which of the following represents a real number?
- A.
  
  A
- B.
  
  Z
- C.
  
  N
- D.
  
  None of the number
Correct Answer
D. None of the number

Explanation
The options provided - A, Z, and N - do not represent real numbers. A represents the set of natural numbers, Z represents the set of integers, and N represents the set of whole numbers. Real numbers include rational and irrational numbers, such as fractions, decimals, and square roots of non-perfect squares. Therefore, none of the given options represent a real number.

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9.

Which of the following is an example of real number?
- A.
  
  12
- B.
  
  12.0
- C.
  
  -12
- D.
  
  None of the abpve
Correct Answer
B. 12.0

Explanation
The number 12.0 is an example of a real number because it is a decimal number that can be expressed as a finite or infinite decimal. Real numbers include rational numbers (numbers that can be expressed as a fraction) and irrational numbers (numbers that cannot be expressed as a fraction and have an infinite decimal representation). Since 12.0 can be expressed as the fraction 12/1, it is a rational number and therefore a real number.

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10.

Which of the following is an example of even numbers?
- A.
  
  1
- B.
  
  13
- C.
  
  14
- D.
  
  17
Correct Answer
C. 14

Explanation
An even number is a number that is divisible by 2 without leaving a remainder. In this case, the number 14 is the only option that is divisible by 2, as 14 divided by 2 equals 7 with no remainder. Therefore, 14 is an example of an even number.

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