Simplifying ratios and ratios as edexcle Dividing a quantity in a given ratio Using ratio Best-buy problems Compound measures Compound interest and repeated percentage change Reverse percentages Eexcel and inverse proportion. Basic probability 92 Sample spaces and experimental probability 94 The probability of combined events 96 Frequency trees 99 Tree diagrams Venn diagrams Pie charts and composite and dual bar charts 6.
How to use this book This workbook aims to help you develop the fluency, reasoning and problem-solving skills you need to achieve and reach your full potential in your Mathematics GCSE. It gives you plenty of practice, guidance and equations for maths gcse edexcel 50 in the key topics and main sections that will have the most impact when working towards grades Each section in this workbook is colour coded as follows: Number, Algebra, Ratio, proportion and rates of change, Geometry and measures, Probability and Statistics.
Question grades You can tell the grade of each question or question equations for maths gcse edexcel 50 by the colour of its number: Grade 5 questions are shown as 1 Grade 6 questions are shown as 1 Grade 7 questions are shown 5 1. Revision papers The three revision papers that are provided in this workbook will help you to prepare for your exams. Papers 1 and 3 do not allow the use of a calculator, but you may use a calculator for Paper 2.
You are provided with a list of formulae that you need to know for the examination on pages � You will find answers to all the questions in the tear-out section at the back of this workbook. If you are working on your own, you can check your answers. If you are working in class, your teacher may want to go through the answers with you.
Bags of pasta each have a mass of grams, to the nearest gram. What is the largest possible mass of 10 bags? Both values are rounded to 1 significant figure. A number, x, is rounded to 2 decimal places. The result is 3. A number, y, is rounded to 2 significant figures. Give your answer to 4 decimal places. Hint: The error interval for a rounded value shows the smallest possible value to the largest possible value, e.
A rectangle measures 5 cm by 4 cm. Both measurements are correct to 1 significant figure. A bridge has a height restriction of 5. A driver knows that his lorry has a height of 5 metres, to the nearest centimetre.
Which of the following statements is definitely true? Give a reason for your answer. A: The lorry will pass under the bridge. B: Equations for maths gcse edexcel 50 lorry will equations for maths gcse edexcel 50 pass under the bridge.
C: It is not possible to tell if the lorry can pass under the bridge. Burgers are sold in packs of 6. Bread equations for maths gcse edexcel 50 are sold in packs Equations For Maths Gcse Edexcel Zip Code of 8. What edexcl the smallest number of each pack needed to have the same number of burgers and bread buns? Ededcel does a large shop every 4 days, her mum does a large shop every 9 days, her gran does a large shop every 24 days.
Work out the number of days in a year that they do a large shop on the same day. The LCM of two numbers is Fdexcel HCF of the same two numbers is What is the product of the two numbers? Always take the root part first as it makes the number smaller and easier to deal. See More. Question grades You can tell the grade of each question or question part by the colour of its number: Grade edwxcel questions are shown as 1 Grade 6 questions are shown as 1 Grade 7 questions are shown as 1 Use of calculators You may use a calculator for questions that are marked with a icon.
Hint: Change each term to a power of 3. Revision papers Paper 1 Name Formulae you should know Date 1 Express as the product of its prime factors. The sum of their three ages is Find the ratio of equations for maths gcse edexcel 50 ages of Ben to Joy to Amir.
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