Classifying Real Numbers

Flashcard
•
Mathematics
•
7th - 12th Grade
•
Hard
+1
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 a ratio of two integers, where the denominator is not zero.
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 or ratio. Its decimal representation goes on forever without repeating.
Tags
CCSS.8.NS.A.1
3.
FLASHCARD QUESTION
Front
Give an example of an irrational number.
Back
Examples of irrational numbers include √2, π (pi), and e (Euler's number).
Tags
CCSS.8.NS.A.1
4.
FLASHCARD QUESTION
Front
What kind of decimals are irrational?
Back
Those that never end and have no pattern.
Tags
CCSS.7.NS.A.2D
CCSS.8.NS.A.1
5.
FLASHCARD QUESTION
Front
Can a rational number be negative?
Back
Yes, rational numbers can be positive or negative.
6.
FLASHCARD QUESTION
Front
Can a rational number be a decimal?
Back
Yes, rational numbers can be expressed as decimals, either terminating or repeating.
Tags
CCSS.7.NS.A.2D
CCSS.8.NS.A.1
7.
FLASHCARD QUESTION
Front
What is the opposite of a real number?
Back
The opposite of a real number is an imaginary number.
Tags
CCSS.HSN.CN.A.1
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