Introduction
  • Introduction
  • What You Will Learn?
Course Prerequisites
  • Divisibility Tests
  • Multiplication Tables
  • Prime Factorization
Beginners' Tricks
  • Addition of Numbers
  • Subtraction of Numbers
  • Multiplying Numbers by 11
  • Squaring Numbers Ending with 5
  • Calculating Percentages
  • Multiplying Numbers Close to Each Other
  • BONUS: Dividing Numbers by 7
  • Test Your Skills
Intermediate Tricks
  • Squaring Numbers Close to the Powers of 10
  • Multiplying Numbers Close to Powers of 10
  • Cubing Numbers that End with 1
  • Cubing Numbers Beginning with 1
  • Test Your Skills
Advanced Tricks
  • Estimating Square-Roots and Cube-Roots
  • Squaring Numbers using non-10 bases
  • Using Algebraic Identities
  • Everyone has their Own Way!
  • Derivation of the Cubing Trick