The Real Number System

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Name the set(s) 4.6590... belongs to.

Irrational

Name the set(s) 4.6666 belongs to.

Rational

Name the set(s) 7 belongs to.

Rational

Name the set(s) 80 belongs to.

Rational

Name the set(s) ½ belongs to.

Rational

True or False: -√80 is an irrational number.

True

True or False: 0 is a whole number.

True

True or False: 2/3 is a rational number.

True

True or False: 89 is a rational number

True

True or False: 9 is a rational number

True

True or False: All integers are rational numbers.

True

True or False: All irrational numbers are real numbers.

True

True or False: All natural numbers are integers.

True

True or False: All natural numbers are whole numbers.

True

True or False: All numbers are real numbers.

True

True or False: All rational numbers are real numbers.

True

True or False: All whole are integers.

True

True or False: All whole numbers are rational numbers.

True

True or False: Any number that can be written as a fraction (where the denominator is not 0), is a rational number.

True

True or False: Some decimals are irrational numbers.

True

True or False: Some decimals are rational numbers.

True

True or False: The decimal for a rational number terminates and/or repeats.

True

True or False: The decimal for an irrational number never ends and never repeats.

True

True or False: When you take the square root of a non-perfect square you always get a irrational number.

True

What are integers?

Whole numbers and their opposites.

Name the set(s) 22/7 belongs to.

Real, Rational Remember: 22/7 is an estimate for pi and not actually equal to pi. Any number that can be written as a fraction is Rational.

Name the set(s) 3.14 belongs to.

Real, Rational Remember: 3.14 is an close to pi and not actually equal to pi. Any decimal that terminates is Rational.

What is the smallest set that contains the value 1.751...?

Irrational

What is the smallest set that contains the value √2?

Irrational

What is the smallest set that contains the value ³√8?

Natural

What are the irrational numbers?

Non-terminating decimals (decimals that never end). Decimals that have no repeating pattern.

Name the set(s) (49/7) belongs to.

Rational

Name the set(s) -107 belongs to.

Rational

Name the set(s) -17 belongs to.

Rational

Name the set(s) -23 belongs to.

Rational

Name the set(s) -½ belongs to.

Rational

Name the set(s) -¾ belongs to.

Rational

Name the set(s) -√121 belongs to.

Rational

Name the set(s) -√25 belongs to.

Rational

Name the set(s) -√36 belongs to.

Rational

Name the set(s) 0 belongs to.

Rational

Name the set(s) 0.99 belongs to.

Rational

Name the set(s) 1,000 belongs to.

Rational

Name the set(s) 1.222 belongs to.

Rational

Name the set(s) 1.23 belongs to.

Rational

Name the set(s) 4.6590 belongs to.

Rational

Name the set(s) ¾ belongs to.

Rational

Name the set(s) √144 belongs to.

Rational

Name the set(s) √3 belongs to.

Rational

Name the set(s) √49 belongs to.

Rational

Name the set(s) √5 belongs to.

Rational

Name the set(s) √81 belongs to.

Rational

What is the smallest set that contains the value -1.9?

Rational

What is the smallest set that contains the value -3.5?

Rational

What is the smallest set that contains the value 0.644444?

Rational

What is the smallest set that contains the value 0.6464?

Rational

What is the smallest set that contains the value 2/13?

Rational

What is the smallest set that contains the value √1/√4?

Rational

Name the set(s) (√121/√144) belongs to.

Rational Remember: (√121/√144) = 11/12

Name the set(s) (√36/√49) belongs to.

Rational Remember: (√36/√49) = 6/7

Name the set(s) (√4/√9) belongs to.

Rational Remember: (√4/√9) = 2/3

True or False: All integers are natural numbers.

False

True or False: All integers are whole numbers.

False

True or False: All natural numbers are irrational numbers.

False

True or False: All real numbers are irrational numbers.

False

True or False: All real numbers are rational numbers.

False

True or False: All whole are natural numbers.

False

True or False: All whole numbers are irrational numbers.

False

True or False: The decimal for a rational number never ends and never repeats.

False

True or False: The decimal for an irrational number terminates and/or repeats.

False

True or False: When you take the square root of a non-perfect square you always get a rational number.

False

True or False: The value of π can be expresses as 22/7 and is therefore a rational number.

False; 22/7 is an estimate for pi.

Name the set(s) √2 belongs to.

Irrational

What is the smallest set that contains the value -√3?

Irrational

What is the smallest set that contains the value 1.367...?

Irrational

What are the rational numbers?

Any number that can be written as a fraction. Repeating decimals. Terminating decimals (decimals that come to and end).

True or False: -9 is a irrational number

False

True or False: -90 is a irrational number

False

True or False: -√100 is an irrational number.

False

True or False: -√25 is an irrational number.

False

True or False: -√81 is an irrational number.

False

True or False: 0 is an irrational number.

False

True or False: All integers are irrational numbers.

False

True or False: When you take the square root of a perfect square you always get a rational number.

True


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