Real, Rational, and Irrational Numbers (Grade 10 NSC Matric Mathematics): Quizzes

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Real, Rational, and Irrational Numbers
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10 questions from this quiz

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What are natural numbers?

The counting numbers: 1,2,3,4,5,...1, 2, 3, 4, 5, ...

What distinguishes whole numbers from natural numbers?

Whole numbers include zero

Which set includes both positive and negative counting numbers and zero?

Integers

What type of number is −5\sqrt{-5}?

Non-real or imaginary

How can a rational number be expressed?

As ab\frac{a}{b} where a,ba, b are integers, b≠0b \neq 0

What types of decimal patterns do rational numbers have?

Terminating or recurring patterns

Which of these is an example of an irrational number?

3\sqrt{3}

What characterises the decimal form of irrational numbers?

Non-terminating with no repeating pattern

To convert a recurring decimal with 3 repeating digits to a fraction, multiply by what?

10001000

Which statement about the number system hierarchy is correct?

Every natural number is also an integer

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