
Identifying Rational and Irrational Numbers
Flashcard
•
Mathematics
•
6th - 9th Grade
•
Practice Problem
•
Hard
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16 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 fraction or ratio of two integers, where the denominator is not zero.
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 cannot be written as a ratio of two integers.
3.
FLASHCARD QUESTION
Front
Is √16 a rational or irrational number?
Back
Rational, because √16 = 4, which is an integer.
4.
FLASHCARD QUESTION
Front
Is √8 a rational or irrational number?
Back
Irrational, because √8 cannot be expressed as a fraction of two integers.
5.
FLASHCARD QUESTION
Front
What is an example of a rational number?
Back
2.25, because it can be expressed as 9/4.
6.
FLASHCARD QUESTION
Front
What is an example of an irrational number?
Back
π (pi), because it cannot be expressed as a fraction.
7.
FLASHCARD QUESTION
Front
How do you determine if a number is rational?
Back
Check if it can be expressed as a fraction a/b, where a and b are integers and b ≠ 0.
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