
1.Number System Quiz
Authored by Aasha academia
Mathematics
9th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of a rational number?
A number that is not a real number
A number that is not a whole number
A number that cannot be expressed as a fraction
A number that can be expressed as the quotient or fraction of two integers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is the number 3.14 a rational number? Why or why not?
No
Yes, because it can be expressed as a fraction
No, because it is a whole number
Yes, because it is a repeating decimal
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a and b are both integers, can a/b be a rational number? Explain.
Yes
No, because a/b will always be an imaginary number
No, because a/b will always be a complex number
No, because a/b will always be an irrational number
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the decimal representation of the rational number 2/5?
0.2
0.6
0.8
0.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is the square root of 16 a rational number? Why or why not?
Yes
No, because the square root of 16 is a fraction
No, because the square root of 16 is a whole number
No, because the square root of 16 is an irrational number
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of an irrational number?
A rational number
A whole number
A real number that cannot be expressed as a ratio of two integers.
A prime number
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Give an example of an irrational number.
100
√2 (square root of 2)
3.14
1/2
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