SETS AND SUBSETS OF NUMBERS (TEKS 8.2A)

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Which of the following is a positive rational number, but not a whole number?

• √25
• −(7/8)
• π
• (3/7)

Which of the following is NOT a true statement?

• All whole numbers are integers.
• All irrational numbers are real numbers.
• No integers are irrational numbers.
• All rational numbers are whole numbers.

Which term best fits in the box labeled “A”?

• Integers
• Imaginary numbers
• Natural numbers
• Square roots

Which number belongs in the box labeled “Rational Numbers”, but outside the box labeled “A”?

• 3π
• √−24
• (4/3)
• −8

Which statement is true?

• Integers are always irrational.
• All whole numbers are rational.
• Irrational numbers are imaginary numbers.
• Irrational numbers include integers.

Which statement best describes a whole number?

• A rational number with no decimal parts.
• An irrational number that is not negative.
• An integer that is not negative.
• An irrational number with no decimal parts.

Which of the following is NOT an integer?

• 32
• −(8/2)
• √16
• 3π

Which of the following does NOT describe a rational number?

• A number that can be written (a/b) where a and b are integers and b ≠ 0
• The square root of an integer that cannot be expressed as the square of a rational number
• A terminating decimal
• A repeating decimal

To which sets does the number −5 belong?

• I and III only
• I and II only
• II and III only
• III only