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Number Systems Quiz Quiz
10 multiple choice questions
Q1: Which of the following is a rational number?
A) sqrt(2)
B) 0.25
C) pi
D) sqrt(3)
Q2: The set of integers includes:
A) Positive and negative whole numbers including zero
B) Only positive numbers
C) Only negative numbers
D) Only zero
Q3: The number 0.333... (repeating) is:
A) An irrational number
B) A whole number
C) A rational number (1/3)
D) An integer
Q4: Which number is NOT an integer?
A) 5
B) -3
C) 0.5
D) -7
Q5: Natural numbers are:
A) Only zero
B) Only negative numbers
C) Positive counting numbers (1, 2, 3...)
D) All fractions
Q6: The number i (imaginary unit) squared equals:
A) -1
B) 1
C) 0
D) i
Q7: The decimal 0.142857142857... (repeating) equals which fraction?
A) 1/7
B) 1/8
C) 1/7 (repeating 142857)
D) 1/6
Q8: Which of the following is an irrational number?
A) sqrt(5)
B) 3.14
C) 0.5
D) 4/5
Q9: The absolute value of -9 is:
A) 9
B) -9
C) 0
D) 1/9
Q10: Which set of numbers includes all others?
A) Natural numbers
B) Integers
C) Real numbers
D) Rational numbers
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