Number Sets Quiz

What is the set of natural numbers?

• {0, 1, 2, 3, 4, 5, ...}

• {..., -3, -2, -1, 0, 1, 2, 3, ...}

• {a/b | a, b ∈ Z, b ≠ 0}

• Numbers that cannot be expressed as a fraction

Which of the following describes the set of integers?

• {0, 1, 2, 3, 4, 5, ...}

• {..., -3, -2, -1, 0, 1, 2, 3, ...}

• Numbers that cannot be expressed as a fraction

• Numbers with infinite non-repeating decimals

What is a characteristic of irrational numbers?

• They can be expressed as a fraction

• They have infinite non-repeating decimals

• They are only positive numbers

• They are only negative numbers

Which of the following is an example of an irrational number?

• 1/2

• 3.14

• √2

• 5

What does the union of rational and irrational numbers form?

• Natural numbers

• Integers

• Real numbers

• Complex numbers

What is the result of adding two numbers with the same sign?

• The sum is negative

• The sum is positive

• The sum takes the common sign

• The sum is zero

What is the result of multiplying two numbers with different signs?

• The product is positive

• The product is negative

• The product is zero

• The product is the same as the larger number

• Base

• Exponent

• Product

• Factor

What is the result of dividing 22 by 2?

• 10

• 11

• 12

• 13

What is the result of the operation $-20 \div 5$?

• 4

• -4

• 5

• -5