Mathematics

1. 1 Numbers (I) Notes
   • Base Ten Numeration
   • Natural Numbers and Whole Numbers
   • Integers
2. 2 Fractions Notes
   • Proper, Improper and Mixed Numbers
   • Comparison of Fractions
3. 3 Decimals and Percentages Notes
   • Decimals
   • Operations on Decimals
   • Percentages
4. 4 Units Notes
5. 5 Approximations Notes
   • Rounding Off
   • Approximations in Calculations
6. 6 Geometry Notes
   • Points and Lines
   • Polygons and Regions
7. 7 Algebra Notes
   • Algebraic Operations
   • Equations in One Unknown
   • Equations in Two Unknowns
8. 8 Numbers (II) Notes
   • Rational Numbers
   • Irrational Numbers
9. 9 Ratios, Profit and Loss Notes
   • Ratio
   • Profit and Loss
10. 10 Coordinate Geometry Notes
    • Gradient
    • Graphs
11. 11 Perimeters and Areas Notes

Source: Basic Mathematics Syllabus for Ordinary Secondary Education, Form I-IV (MoEVT, reprint 2017). Sub-topic wording follows the syllabus and is checked as each topic's notes are written.