What Do You Know About Directed Numbers?

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| By Melomee

Melomee

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1/10 Questions

What are directed numbers?
- Equal
- Positive
- Negative
- Positive or negative

About This 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.

What Do You Know About Directed Numbers? - Quiz

2.

Which one of these do directed numbers have?
- Size
- Bracket
- Inequality
- 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.

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3.

What is a whole directed number called?
- Sparrow
- Integer
- Value
- Momentum
Correct Answer

A. 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.

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4.

What do directed numbers have?
- Direction
- Bracket
- Inequality
- 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.

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5.

What is a number without a sign?
- Positive
- Unequal
- Negative
- 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.

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6.

Which of these can be used to show the size of certain numbers?
- Number line
- Graph
- Figure table
- 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.

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7.

Which term tells how far a number is from zero?
- Absolute value
- Real Value
- Directed number
- 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.

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8.

Which question does a cardinal number answer?
- When
- Where
- How many
- How weighted
Correct Answer

A. 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.

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1
9.

What do ordinal numbers deal with?
- Importance
- Value
- Position
- Direction
Correct Answer

A. 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."

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10.

What is a nominal number used for?
- Value
- Cardination
- Position
- Identification
Correct Answer

A. 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.

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