Real Number System

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a rational number?
Back
A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero. Examples include 1/2, 3, and -4.
Tags
CCSS.5.NBT.A.2
2.
FLASHCARD QUESTION
Front
What is an irrational number?
Back
An irrational number is a number that cannot be expressed as a simple fraction. It is a non-repeating, non-terminating decimal. Examples include √2 and π.
Tags
CCSS.8.NS.A.1
3.
FLASHCARD QUESTION
Front
What are natural numbers?
Back
Natural numbers are the set of positive counting numbers starting from 1, 2, 3, and so on.
4.
FLASHCARD QUESTION
Front
What are whole numbers?
Back
Whole numbers are the set of natural numbers including zero. They are 0, 1, 2, 3, and so on.
5.
FLASHCARD QUESTION
Front
What are integers?
Back
Integers are whole numbers that can be positive, negative, or zero. Examples include -3, 0, and 5.
6.
FLASHCARD QUESTION
Front
What is the difference between rational and irrational numbers?
Back
Rational numbers can be expressed as fractions of integers, while irrational numbers cannot be expressed as fractions and have non-repeating, non-terminating decimal expansions.
7.
FLASHCARD QUESTION
Front
Classify the number: 0.75
Back
Rational, real.
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