O level Maths notes 16122015

GCE ‘N’ AND ‘O’ LEVEL ELEMENTARY MATHEMATICS NOTES Written By: Lai Zhi Yin Mobile: 9232 2940|Email: me@bishantuition.com|Website: bishantuition.com

Elementary Mathematics Notes Written by: Lai Zhi Yin (2016)| Mobile: 9232 2940| Website: bishantuition.com 1 Revision Check    Notes to All Students This book is written according to the syllabus of GCE O Level Elementary Mathematics (Subject code: 4016 and 4048) for Year 2016 taken from SEAB website. The purpose in writing this book is to help students break down Mathematics into simpler parts and to achieve a better understanding of the individual concepts. By studying this book solely, you are not guaranteed to get A1 in the O levels. Intensive practise is advised. Notes written in red emphasises the common mistakes committed by students in the exams. Do make sure that you understand everything that is written. Students are advised to write their units clearly in all workings and final answer. Failure to do so can lead to a loss of marks. Students are also advised to write their workings and statements clearly. Writing the statements alone does not earn you marks but by showing clear statements and workings, it reflects your understanding towards the question. In the event that you did not get the final answer correct, it will be easier for the examiner to allocate marks through the workings. Even though some of the examples used are adapted from ‘N’ level ten year series, students taking ‘O’ levels are still advised to read through them thoroughly and make sure that every concept is understood clearly as similar questions may appear in the O levels paper. Being complacent will lead to nothing but failure. If possible, cover the examples with a paper and attempt it first before looking at the answers. Students are recommended to contact me at 9232 2940 as soon as possible should they spot any errors during the process of revisions. Good luck to all of you taking the O and N levels  Lai Zhi Yin

Elementary Mathematics Notes Written by: Lai Zhi Yin (2016)| Mobile: 9232 2940| Website: bishantuition.com 2 Revision Check    NUMBER AND ALGEBRA N1. Numbers and Four Operations N1.1 Basic Definitions of Mathematical Terms N1.2 Number Line N1.3 Basic Mathematical Symbols N1.4 Expressing Recurring Decimals as Fraction N1.5 Basic Calculator Skills (CASIO fx-96SG PLUS) N1.6 Approximation and Estimation N1.7 Finding Highest Common Factor (HCF) and Lowest Common Factor (LCM) N1.8 Determining Square Root of Number by Prime Factorisation N1.9 Determining Cube Root of Number by Prime Factorisation N1.10 Word Problems Involving HCF and LCM N1.11 Standard Form N1.12 Law of Indices N2. Ratio and Proportion N2.1 Word Problems Involving Ratio and Proportion N2.3 Maps Scales (Distance and Area) N2.4 Direct Proportion N2.5 Inverse Proportion N3. Percentage N3.1 Conversion between Perce