Factorials — A/L Combined Mathematics

What should I read on Factorials?

Work through these in order. Resources in English, Sinhala and Tamil.

1. 1. Start here · Explanation
   Khan Academy Algebra — Factorials, Permutations and Counting Principles

   This link opens the whole course, not a page on this topic. It follows its publisher's own syllabus, not the NIE syllabus.

   Free lessons with short videos and practice exercises. Use it to learn the idea step by step before you attempt exam questions.

   Source: Khan Academy — Algebra
2. 2. Then · Official syllabus resource
   e-thaksalawa — Ministry of Education e-learning

   This link opens the site's home page. Search there for: Factorial Algebra and Zero Factorial Definition

   The Ministry of Education's e-learning platform, with lessons organised by grade and subject in Sinhala, Tamil and English. Use it to check the topic against what your syllabus covers.

   Source: Ministry of Education, Sri Lanka — e-thaksalawa

Next in the syllabus

Where does Factorials fit in the syllabus?

Year 2 · Term 1