Types of Numbers (Junior Cert Mathematics): Quizzes

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Types of Numbers
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13 questions from this quiz

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What are natural numbers?

Positive whole numbers

Is zero a natural number?

No, natural numbers start from 1

Which numbers are even natural numbers?

Natural numbers divisible by 2

What are integers (mathbbZ)(mathbb{Z})?

Whole numbers: positive, negative, zero

What is −4+(−3)-4 + (-3)?

−7-7

How do you subtract integers like 5−35 - 3?

Change to 5+(−3)5 + (-3) then add

What are real numbers (mathbbR)(mathbb{R})?

All numbers on the number line

What are rational numbers (mathbbQ)(mathbb{Q})?

Numbers that can be written as fractions

What defines irrational numbers?

Cannot be written as simple fractions

Which statement about the number 22 is true?

It is the only even prime number

What are composite numbers?

Numbers with more than two factors

How is the number 11 classified?

Neither prime nor composite

Which of these is an irrational number?

2\sqrt{2}

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