REVISION NOTES

IGCSE Edexcel Mathematics A

1.8 Degree of Accuracy

1.8.1 Round integers to a given power of 10

edexcel_igcse_mathematics a_topic 08_degree of accuracy_001_introduction to rounding numbers

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

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

edexcel_igcse_mathematics a_topic 08_degree of accuracy_002_significant figures
edexcel_igcse_mathematics a_opic 08_degree of accuracy_003_rounding significant figures

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

edexcel_igcse_mathematics a_opic 08_degree of accuracy_004_introduction to upper and lower bounds

Lower bound = stated value minus half a ‘step’

Upper bound = stated value plus half a ‘step’

edexcel_igcse_mathematics a_opic 08_degree of accuracy_005_introduction to upper and lower bounds(significant figures)
edexcel_igcse_mathematics a_opic 08_degree of accuracy_006_introduction to upper and lower bounds(decimal places)
edexcel_igcse_mathematics a_opic 08_degree of accuracy_007_how to calculate upper and lower bounds

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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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 & 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

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