RATIONAL NUMBERS

What is a rational number?

• A number that can be expressed as a fraction a/b, where a and b are integers and b ≠ 0.

• A number that cannot be expressed as a fraction.

• A number that is always an integer.

• A number that has an infinite number of decimal places.

How would 5/9 be classified?

• Irrational number

• Whole number

• Rational number

• Integer

What is the difference between whole numbers and integers?

• Whole numbers are only positive numbers, while integers include only negative numbers.

• Whole numbers are 0 and positive numbers, while integers include negative numbers as well.

• Whole numbers are all numbers including fractions, while integers are whole numbers only.

• Whole numbers are negative numbers, while integers are only positive numbers.

Can a repeating decimal be a rational number? (True/False)

• True

• False

• Sometimes

• Not applicable

Give an example of a rational number.

• 1/2

• π (pi)

• √2

• e (Euler's number)

Is -1/3 a rational number? (True/False)

• True

• False

• Not a number

• An irrational number

What is the product of -1 and 5?

• -4

• -5

• 5

• 4

Is 0 a whole number?

• True

• False

• Not a number

• Undefined

What is the sum of -2 and 3?

• 0

• 1

• 2

• -1

Is every integer a rational number?

• True

• False

• Only positive integers are rational

• Only negative integers are rational