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Flashcards on Rational Numbers
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What is a rational number?
A rational number is a number that can be expressed as a ratio of two integers, where the denominator is not zero.
Is 0 a rational number?
Yes, 0 is a rational number because it can be written as 0/1.
Give an example of a rational number.
2/3 is a rational number.
Is √2 a rational number?
No, √2 is an irrational number.
What is the sum of two rational numbers?
The sum of two rational numbers is also a rational number.
Is -5/3 a rational number?
Yes, -5/3 is a rational number.
What is the product of a rational number and an irrational number?
The product of a rational number and an irrational number is an irrational number.
Is 1 a rational number?
Yes, 1 is a rational number because it can be written as 1/1.
Is 3.14 a rational number?
No, 3.14 is an irrational number.
What is the opposite of a rational number?
The opposite of a rational number is also a rational number.
Is -2 an integer?
Yes, -2 is an integer.
Can all integers be represented as rational numbers?
Yes, all integers can be represented as rational numbers.
Is 7/0 a rational number?
No, 7/0 is undefined as division by zero is not allowed.
What is the reciprocal of a rational number?
The reciprocal of a rational number is found by interchanging the numerator and denominator.
Is 1/2 a rational number?
Yes, 1/2 is a rational number.
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Test Your Knowledge
Which of the following is a rational number?
√3
3/4
π
-√5
Check Answers
What is the sum of -2/5 and 3/5?
-5/10
1/5
5/10
-1/5
Check Answers
Is 5/2 an integer?
Yes
No
Check Answers
What is the reciprocal of 2/3?
-2/3
3/2
-3/2
2/3
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Is √9 a rational number?
Yes
No
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What is the product of 5/6 and √2?
5√2/6
5√2/6√2
5/12
√10/6
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Is -3 a rational number?
Yes
No
Check Answers
Which of the following is an irrational number?
√7
1/3
5
-4
Check Answers
Is 0.25 a rational number?
Yes
No
Check Answers
What is the difference between -3/5 and 2/5?
-1
-1/10
1
5/10
Check Answers
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