Real Numbers
Class 9 · Mathematics · 5 lessons
This chapter, Real Numbers, is part of the Class 9 Mathematics syllabus under CBSE, Telangana and Andhra Pradesh boards. It contains 5 lessons — starting with Introduction to Real Numbers, Exercise 1.1 — Rational Numbers Revision, Exercise 1.2 — Irrational Numbers, and more — each with free, step-by-step PDF notes you can study directly in the browser or present in class in fullscreen mode. Work through the lessons in order below; later exercises in this chapter generally build on the concepts introduced in the earlier ones.
Introduction to Real Numbers
Rational numbers, representation on number line and decimal form.
Exercise 1.1 — Rational Numbers Revision
Revision of rational numbers and their decimal form.
Exercise 1.2 — Irrational Numbers
Irrational numbers, their representation and introduction of real numbers.
Exercise 1.3 — Successive Magnification
Representing decimal numbers on number line using successive magnification.
Exercise 1.4 — Operations on Real Numbers
Operations on real numbers.