What Do You Know About Directed Numbers?

Approved & Edited by ProProfs Editorial Team

The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.

Learn about Our Editorial Process

| By Melomee

Melomee

Community Contributor

Quizzes Created: 23 | Total Attempts: 87,846

Questions: 10 | Attempts: 413 | Updated: Mar 21, 2023

Questions

Settings

Feedback

During the Quiz End of Quiz

Difficulty

Sequential Easy First Hard First

Play as

Quiz Flashcard

Create your own Quiz

Share on Facebook Share on Twitter Share on Whatsapp Share on Pinterest Share on Email Copy to Clipboard Embed on your website

What Do You Know About Directed Numbers? - Quiz

In the field of mathematics, directed numbers are numbers which have a direction (either positive or negative) and a size (either whole number or decimal number). In addition, they can be added and subtracted together just like standard positive integers. However, signs are very important as each directed number individually has its own direction.

Questions and Answers

1.

What are directed numbers?
- A.
  
  Equal
- B.
  
  Positive
- C.
  
  Negative
- D.
  
  Positive or negative
Correct Answer
D. Positive or negative

Explanation
Directed numbers, also known as signed numbers, are numbers that can be either positive or negative. They are used to represent quantities that have both magnitude and direction. Positive directed numbers represent quantities that are greater than zero, while negative directed numbers represent quantities that are less than zero. The answer "Positive or negative" accurately describes directed numbers as they can be either positive or negative depending on the context.

Rate this question:
2.

Which one of these do directed numbers have?
- A.
  
  Size
- B.
  
  Bracket
- C.
  
  Inequality
- D.
  
  Trig
Correct Answer
A. Size

Explanation
Directed numbers have a concept of size or magnitude. This refers to the numerical value of the number, regardless of its sign. For example, both -5 and 5 have a size of 5. Size helps us compare and order numbers, understanding their relative values.

Rate this question:
3.

What is a whole directed number called?
- A.
  
  Sparrow
- B.
  
  Integer
- C.
  
  Value
- D.
  
  Momentum
Correct Answer
B. Integer

Explanation
A whole directed number is called an integer. Integers are numbers that include both positive and negative whole numbers, as well as zero. They are used to represent quantities that can be counted or measured in both forward and backward directions. Integers are commonly used in mathematics and are an essential concept in number theory and algebra.

Rate this question:
4.

What do directed numbers have?
- A.
  
  Direction
- B.
  
  Bracket
- C.
  
  Inequality
- D.
  
  Momentum
Correct Answer
A. Direction

Explanation
Directed numbers have direction. This means that they can be positive or negative, indicating whether they are greater or lesser than zero. The sign of a directed number represents its direction, with positive numbers indicating a forward or upward direction, and negative numbers indicating a backward or downward direction. The concept of direction is fundamental in understanding and working with directed numbers.

Rate this question:
5.

What is a number without a sign?
- A.
  
  Positive
- B.
  
  Unequal
- C.
  
  Negative
- D.
  
  Directionless
Correct Answer
A. Positive

Explanation
A number without a sign refers to a positive number. In mathematics, positive numbers are represented without a sign symbol, indicating that they are greater than zero. Unlike negative numbers which have a minus sign (-), positive numbers are considered to be directionless and do not indicate any specific direction. Therefore, the correct answer is positive.

Rate this question:
6.

Which of these can be used to show the size of certain numbers?
- A.
  
  Number line
- B.
  
  Graph
- C.
  
  Figure table
- D.
  
  Trig table
Correct Answer
A. Number line

Explanation
A number line can be used to show the size of certain numbers. It is a visual representation of numbers arranged in a straight line, with positive numbers to the right and negative numbers to the left. The position of a number on the number line indicates its magnitude or size. By using a number line, we can compare and determine the relative size of different numbers.

Rate this question:
7.

Which term tells how far a number is from zero?
- A.
  
  Absolute value
- B.
  
  Real Value
- C.
  
  Directed number
- D.
  
  Directed Value
Correct Answer
A. Absolute value

Explanation
The term "absolute value" refers to the distance of a number from zero on a number line. It is always a positive value, as it represents the magnitude or size of the number, regardless of its sign. Therefore, the absolute value is the correct term that tells how far a number is from zero.

Rate this question:
8.

Which question does a cardinal number answer?
- A.
  
  When
- B.
  
  Where
- C.
  
  How many
- D.
  
  How weighted
Correct Answer
C. How many

Explanation
A cardinal number is a number used to indicate quantity or how many of something there is. Therefore, the question that a cardinal number answers is "How many?" This question seeks to determine the quantity or number of something.

Rate this question:
9.

What do ordinal numbers deal with?
- A.
  
  Importance
- B.
  
  Value
- C.
  
  Position
- D.
  
  Direction
Correct Answer
C. Position

Explanation
Ordinal numbers deal with the position or order of things in a sequence or series. They are used to indicate the position of an element in relation to others, such as first, second, third, etc. Ordinal numbers are different from cardinal numbers, which represent quantity or value. Therefore, the correct answer is "Position."

Rate this question:
10.

What is a nominal number used for?
- A.
  
  Value
- B.
  
  Cardination
- C.
  
  Position
- D.
  
  Identification
Correct Answer
D. Identification

Explanation
A nominal number is used for identification purposes. It is a type of number that is assigned to something or someone in order to uniquely identify them. This can be seen in various contexts such as identification numbers for individuals, product codes for items, or account numbers for customers. The purpose of a nominal number is to provide a distinct identifier that can be used to differentiate and track different entities.

Rate this question: