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Mathematics A

  • IGCSE Edexcel
  • Revision Notes

1. Numbers & the Number System

1.1 Integers>1.2 Fractions>1.3 Decimals>1.4 Powers and Roots>1.5 Set Language and Notation>1.6 Percentages>1.7 Ratio and Proportion>1.8 Degree of Accuracy>1.9 Standard Form>1.10 Applying Numbers>1.11 Electronic Calculator>

2.1 Use of Symbols >2.2 Algebraic Manipulation >2.3 Expressions and Formulae >2.4 Linear Equations >2.5 Proportion (Higher Tier Only) >2.6 Simultaneous Linear Equations >2.7 Quadratic Equations >2.8 Inequalities >

3.1 Sequences >3.2 Function Notation (Higher Tier Only) >3.3 Graphs >3.4 Calculus (Higher Tier Only) >

4.1 Angles, Lines and Triangles >4.2 Polygons >4.3 Symmetry >4.4 Measures >4.5 Construction >4.6 Circle Properties >4.7 Geometric Reasoning >4.8 Trigonometry and Pythagoras’ Theorem >4.9 Mensuration of 2D Shapes >4.10 3D Shapes and Volumes >4.11 Similarity >

5.1 Vectors (Higher Tier Only) >5.2 Transformation Geometry >

6.1 Graphical Representation of Data >6.2 Statistical Measures >6.3 Probability >

7.1 Appendix 1: Foundation Tier Formula Sheet (Given) >7.2 Appendix 2: Foundation Tier Formula Sheet (To Memorise) >7.3 Appendix 3: Higher Tier Formula Sheet (Given) >7.4 Appendix 4: Higher Tier Formula Sheet (To Memorise) >7.5 Appendix 5: Notation >

1.8 Degree of Accuracy

1.8.1 Round integers to a given power of 10

Type 1: Rounding to the nearest 10, 100, 1000…

1.8.2 Round to a given number of significant figures or decimal places

Type 2: Rounding to a given significant figures (s.f.)

Type 3: Rounding to a given decimal places (d.p.)

1.8.3 Identify upper and lower bounds where values are given to a degree of accuracy

Lower bound = stated value minus half a ‘step’

Upper bound = stated value plus half a ‘step’

1.8.4 Use estimation to evaluate approximations to numerical calculations

1.8.5 Solve problems using upper and lower bounds where values are given to a degree of accuracy (Higher Tier Only)

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