# Mathematics papers igcse

You must be very careful with decimal amounts of time.

## Igcse math past papers by topic

The correct value would be 7. To achieve three figure accuracy in your answer you need to have at least four figures in your working. You must be careful that you are using any formula you have learnt appropriately. Answers in ratio form or in words are NOT acceptable. It is important that you read the question carefully and not make instant assumptions about what you are being asked to do You are advised to show working as well as solutions as marks are awarded for the working even when answers may be incorrect. You may also find some of the Paper 2 Tips useful as some of your topics can appear on paper 2. Write as a fraction in its lowest terms means that you must cancel down the fraction as far as possible In fraction questions that have show all your working included, means that the question must NOT be done on the calculator. Candidates will be expected to be familiar with the scientific notation for the expression of compound units, e. If the points lie on a straight line, however, then it is important to use a ruler to join them Most graphs are well behaved, smooth and do not do unexpected things. Marks are given for the work that you do correctly, not subtracted for the work that you get wrong Graph Questions In reading graph questions it is very important that you make sure that you are reading the scales correctly. If you are drawing a graph then you will need to plot points to within 1 mm and if the points lie on a curve, you need to join them with a smooth freehand curve. If you are in doubt about which axis to read your answer from, then look at the labels on the axes, they will match the units or quantity given in the question. Paper 3 Tips You should read all the Paper 1 Tips as any of these topics could appear on paper 3. A question that says factorise will require you to rewrite the expression using brackets.

When rounding numbers to a given number of significant figures, some zeros count and some do not. In construction questions you are expected to be able to find a locus using just a pair of compasses and a straight edge.

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## Igcse maths past papers 2018

Do not use these diagrams to take measurements from. In probability questions answers should be given in fractions or decimals. Compass arcs showing your construction method are required so do not rub them out — they are an important part of your working. Make sure that your calculator is set to degree deg mode before you enter the examination. Parts of questions are often connected. Examiners will mark the worst answer in these cases. In cumulative frequency graphs the top of the graph and the top of the vertical scale are not always the same number. They are just in different places on the grid. If you asked to solve a quadratic equation and give the answer to two decimal places then this is a clue that the quadratic formula is needed. In construction questions you are expected to be able to find a locus using just a pair of compasses and a straight edge. You need to use the number from the top of the graph in your calculations. Write as a fraction in its lowest terms means that you must cancel down the fraction as far as possible In fraction questions that have show all your working included, means that the question must NOT be done on the calculator. You may also find some of the Paper 2 Tips useful as some of your topics can appear on paper 2.

Paper 1 — 2 hours, 80 marks Paper 2 — 2 hours, 80 marks Each paper includes the formula list. If you work with decimals or percentages then the 3 figure accuracy rule applies as well If you are asked to estimate the size of a number then only 1 significant figure is usually required. In probability questions answers should be given in fractions or decimals.

### Igcse math past papers by topic

In probability questions answers should be given in fractions or decimals. For example, the locus of all the points inside a shape must reach the edges of the shape. Answers in ratio form or in words are NOT acceptable. Grades F and G will not be available. Fellow students must show all necessary workings; no marks will be given to unsupported answers from a calculator. You may also find some of the Paper 2 Tips useful as some of your topics can appear on paper 2. In money questions answers to two decimal places are required. They are collected under various subheadings to help you when you revise a particular topic. Accuracy A minimum of three figure accuracy is required in questions where no accuracy is specified. In questions with mixed units, you should usually convert all the quantities to the unit required in the answer before starting to do the questions, usually to decimal places or percentages. If you are in doubt about which axis to read your answer from, then look at the labels on the axes, they will match the units or quantity given in the question. In construction questions you are expected to be able to find a locus using just a pair of compasses and a straight edge. Marks are given for the work that you do correctly, not subtracted for the work that you get wrong Graph Questions In reading graph questions it is very important that you make sure that you are reading the scales correctly. Paper 4 Tips This is the only paper where you do not yet answer on the question paper.

Please note that 0. You may also find some of the Paper 2 Tips useful as some of your topics can appear on paper 2. Paper 4 Tips This is the only paper where you do not yet answer on the question paper.

On the papers where you write your answer on the question paper, it is not acceptable to give a choice of answers on the answer line.

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