Elementary Mathematics · G2 / G3

Sec 3 E-Math

The usual Sec 3 half of O-Level Mathematics 4052 (SEC G3 K310 from 2027): numbers and their operations, ratio, rate and speed, percentage with personal finance, algebraic expressions and formulae, equations and inequalities, functions and graphs, set language, matrices, angle geometry, congruence and similarity, circle properties, trigonometry and mensuration.

chapters: 13
ready now: 13
quiz questions: 416
exam-style papers: 3

Start here · Chapter 1Numbers & Their Operations

Notes · 14 min read
32-question quiz
20 topical questions
30-mark practice paper

Open Chapter 1

Chapters

13 of 13 chapters ready

Theme 1

Number and Algebra

Numbers and their operations, ratio, rate and speed, percentage with personal finance, algebraic expressions and formulae, equations and inequalities, functions and graphs, set language and matrices.

Theme 2

Geometry and Measurement

Angles, triangles and polygons; congruence and similarity; properties of circles; trigonometry; and mensuration with arc length, sector area and radians.

Topical questions by chapter

One page per chapter: Core, Standard and Challenging questions with model answers.