GRADE 9 · MATHEMATICS · TOPIC 1

Number Systems

Real numbers include rational and irrational values.

CONCEPT EXPLAINED

Understand the concept

Real numbers include rational and irrational values.

SOLVED EXAMPLE

Is √2 rational?

  1. Step 1: √2 cannot be written as a ratio of integers.

Final answer: Irrational

PRACTISE YOURSELF

Is 0.75 rational?

Show the answer

Yes

Try another similar question and explain each step aloud. Refer to your school syllabus for topic level and notation.