Algebra GCSE 9-1 Higher Revision PLEASE NOTE: This product is a growing pack of worksheets - buy it now at the lower price and get free updates as more worksheets are added. There are currently 10 worksheets with a total of 90 questions. This is a pack of 10 worksheets of algebra questions for GCSE higher revision. Each worksheet has 10 hard algebra questions suitable for students aiming for higher levels 6 to 9. All answers are included. The following algebra topics are included: - Harder Expanding and Factorising Harder Solving and the Quadratic Formula Indices with Algebraic Expressions Linear and Quadratic Simultaneous Equations Quadratic Inequalities Harder Changing the Subject of the Formula Algebraic Fractions Harder Sequences Functions Proof Topics still to be added to this pack are:- Iteration Problem Solving with Algebra Mixed Test 1 Mixed Test 2 These questions are designed for GCSE higher (the new specification). The worksheets can be used as a revision booklet for a revision class or workshop or for homework sheets. The document is currently 19 pages in total, with 11 pages to print for students. This resource can be printed in black and white, or colour. You may also like:- GCSE 9-1 Foundation Revision Algebra Please visit Maths Shop to see more of my resources.

Algebra Expressions Worksheets The questions involve simplifying various algebraic expressions including adding and multiplying expressions. All answers are included. This resource contains: Two worksheets with a total of 28 mixed algebra questions. A worksheet on adding algebra expressions. A worksheet on multiplying algebra expressions. The questions are suitable for Key Stage 3 and GCSE Foundation Level students. The document is 9 pages in total, with 4 pages to print for students. It can be printed in colour or black and white. These worksheets can be used as practice questions, tests or homework. They should be done without a calculator. . To see my other resources, please go to Maths Shop You may also like: Simplifying Algebra Colouring Activity GCSE 9-1 Foundation Revision Algebra

Algebraic Fractions GCSE Maths Higher Revision This resource includes 4 no-gimmick worksheets with a total of 24 multi-step algebraic fraction questions. Also included are the same 24 questions as a fun question and answer matching activity. There are 24 questions to simplify algebraic expressions using addition, subtraction, multiplication and division. The questions are suitable for GCSE higher Levels 7 to 9 and could also be used at the beginning of Year 12 A Level. ✎ Contents: This resource includes: • Worksheet 1 to 4 - 24 multi-step algebraic fraction questions with 6 questions per page. • A set of 24 question cards – to use instead of the worksheets. These can be cut out and glued into books. • A set of 24 answer cards – to allow students to match question and answer cards for a more fun way of working. • A question-and-answer recording sheet – for students to record which question card matches to which answer card. • Teachers notes. • All answers. ✦ Objectives: This resource has been designed to practice: • Simplifying algebraic fractions • Factorising algebraic expressions • Expanding algebraic expressions • Simplifying expressions • Collecting like terms ✦ Notes: All answers are included, so you can easily mark students work. These questions should take around an hour for students to complete. ✽ Directions: Print out a set of 4 worksheets for each student. Or print and laminate a set of the question cards and answer cards. ✷ Suggestions: This resource can be used in 3 ways: • Use the 4 worksheets for serious revision. • Alternatively use the question cards. These can be cut out and glued into books. • You can also use the matching answer cards to make a hard matching activity. ♥ You may also like: GCSE 9-1 Higher Revision Algebra ☞ To view my other resources, please go to Maths Shop

Jubilee Maths Logic Problems Football Fun England Red White and Blue Themed Fun Maths. Use for football, Jubilee Day and Great Britain themed maths. Great for end of term fun! ✎ Contents: This resource includes: • 10 worksheets – each worksheet has one puzzle to figure out. • Teachers notes. • All answers. ✦ Objectives: To practice: - • Operations with numbers. • Solving word problems. • Developing logic skills. • Developing problem solving skills. • Order of operations with numbers. • Writing and evaluating expressions with numbers. ✽ Directions: Print out a set of worksheets for each student. Alternatively, laminate one set of worksheets for students to share. Or display for your class on a smartboard. ✦ Notes: All answers are included, so you can easily mark students work. Students can colour the pictures as they do the questions. These questions will easily last an hour. ♥ You may also like: Sports Maths Algebra Substitution Worksheets ☞ To view my other resources, please go to Maths Shop

Earth Day Maths Real Life Maths Word Problems Endangered Species Wildlife Statistics Statistics, facts and figures about animals There are 6 animals in this resource. Each animal has a fact card with 8 real-life statistics. The animals are Water Voles, Bumblebees, Red Squirrels, Beavers, Badgers, Hedgehogs. To go with the fact cards there are 7 maths worksheets, each with 6 question cards. In total there are 42 maths questions on different animals. ✎ Contents: This resource includes: • Factsheet 1 – Facts about Water Voles and Bumblebees • Factsheet 2 – Facts about Red Squirrels and Beavers • Factsheet 3 – Facts about Badgers and Hedgehogs • Worksheet 1 – 6 maths questions on Water Voles. • Worksheet 2 – 6 maths questions on Bumblebees. • Worksheet 3 – 6 maths questions on Red Squirrels. • Worksheet 4 – 6 maths questions on Beavers. • Worksheet 5 – 6 maths questions on Badgers. • Worksheet 6 – 6 maths questions on Hedgehogs. • Worksheet 7 – 6 maths questions comparing animals. • Teachers notes. • All answers. • Model solutions for each question. ✦ Objectives: To practice: - • Word problems • Mental maths • Using and converting metric units • Multiplication and division • Decimals • Drawing angles with a protractor • Percentages • Ratios • Speed, distance and time • Fractions • Averages – mean and median • Range • Diameter and radius ✽ Directions: Print out a set of factsheets. Print worksheets for each student. Alternatively, laminate one set of worksheets for students to share. Or display for your class on a smartboard. ✦ Notes: This resource can be printed in colour, but would work just as well in black and white. These questions have been designed to be completed without a calculator. They are perfect for Key Stage 3 and GCSE Foundation level (Years 7-11). The questions are designed to make students think about the wildlife around them. ✷ Suggestions: The factsheets could be laminated and cut into 6 separate cards, 1 for each animal. The worksheets could be laminated and cut to make a set of 42 question cards. ♥ You may also like: Earth Day Maths Statistics Earth Day Algebra Countries of the World Wordsearch Capitals & Continents Quiz Sports Algebra Colouring Simplifying Algebra Collecting Like Terms Colouring Solving Equations Colouring Activity Colouring Fractions ☞ To view my other resources, please go to Maths Shop

Halloween Maths Simplifying Expressions Colouring Activities Algebra Collecting Like Terms Fun Maths Halloween Activities Simplifying algebraic expressions including positive and negative numbers. ✦ Notes: This is great for Halloween fun! There are 24 questions on simplifying algebraic expressions by collecting like terms. Each answer occurs twice, once with a number and once with a colour. The matching colour can then be used to colour the picture in a colour by number activity. The resource is printed in black and white for the students to colour in. ✎ Contents: This resource includes: • 1 worksheet with 24 questions. • 1 colouring answer sheet. • Teachers notes. • All answers. ✦ Objectives: This resource has been designed to practice: • Collecting like terms. • Simplifying algebraic expressions. • Adding and subtracting the terms of linear expressions. • Identifying when two expressions are equivalent by simplifying. • Adding and subtracting positive and negative numbers. ✽ Directions: Print out the sheet of questions for each student. Alternatively, laminate one set of questions for students to share. Print out a colouring answer sheet for each student. ✷ Suggestions: Students can cut out their completed picture and use it to glue onto a Halloween card. Or use the completed pictures for a Halloween classroom display. ♥ You may also like: Halloween Maths Composite Area Halloween Maths Puzzles ☞ To view my other resources, please go to Maths Shop

Alien and Outer Space Themed Maths Puzzles and Logic Problems. These are no-prep printable activities, perfect for May 4th and Friday fun! These logic puzzles can be solved by trial and error or can be used to introduce algebraic methods. There are 2 versions so that you can print in black and white or colour. All answers are included ✎ Contents: This resource includes: • 8 fun maths puzzles on 8 printable worksheets. • Teachers notes. • All answers. The puzzles included are: • Puzzle 1 - A fun pre-algebra puzzle with 4 pictures to find the number that each picture represents. • Puzzle 2 – A harder puzzle with 4 pictures to find the number that each picture represents. • Puzzle 3 – A fun pre-algebra puzzle with 5 pictures to find the number that each picture represents. • Puzzle 4 - A harder puzzle with 5 pictures to find the number that each picture represents. • Puzzle 5 – 15 questions to complete an alien’s homework. • Puzzle 6 – 15 questions to complete an alien’s homework. • Puzzle 7 – 15 questions to complete an alien’s homework. • Puzzle 8 – 15 questions to complete an alien’s homework. ✦ Objectives: This resource has been designed to practice: • Basic operations with integers and decimals. • Developing logic skills. • Developing problem solving skills. • Writing and evaluating expressions. • Pre-algebra skills. • Mental maths. • Fractions and decimals. • Negative numbers. ✽ Directions: Print out a set of 8 worksheets for each student. There are 2 versions so that you can print in black and white or colour. ✦ Notes: All answers are included, so you can easily mark students work. These questions should take around an hour for students to complete. ♥ You may also like: Maths Logic Problems Red White and Blue Themed May 4th Maths Simplifying Expressions Collecting Like Terms ☞ To view my other resources, please go to Maths Shop

Revision - Mixed Questions GCSE There are 32 questions on 4 worksheets. These questions are a selection of the questions from my other resources. All answers are included. To see more questions on each topic please visit Maths Shop The topics include: Multiplying with decimals Dividing with decimals Percentages of amounts Percentage decrease Estimation Ratio Algebra Substitution Angles in triangles Volume of cuboid Expanding Brackets Proportion with Money These worksheets can be used as practice questions, tests or homework. The document is 9 pages in total, with 4 worksheets to print for students. The resource can be printed in colour or black and white. Keywords: worksheet, test, non-calculator, homework, key stage 3, KS3, Key stage 4, KS4, exam practice, exam questions, revision, revise, review, secondary, GCSE 9-1, foundation, higher.

Collecting Like Terms Algebra GCSE Maths Algebra Simplifying by Collecting Like Terms There are 5 worksheets with a total of 50 questions on simplifying by collecting like terms. Students simplify the algebra on each fishing rod and match it to the fish with the correct answer. All answers are included. ✎ Contents: This resource includes: • 5 worksheets - each with 10 fishing rod questions and 10 matching fish answers. • Teachers notes. • All answers. ✦ Objectives: This resource has been designed to practice: • Simplifying algebraic expressions. • Adding and subtracting the terms of linear expressions. • Multiplying linear expressions. • Identifying when two expressions are equivalent. • Collecting like terms and simplifying. • Adding and subtracting negative numbers. ✽ Directions: Print out a set of worksheets for each student. ✦ Notes: All answers are included, so you can easily mark students work. These questions should take at least an hour for students to complete. ✷ Suggestions: To make it easier to check the answers, ask the students to colour the matching fish and fishing rods in the same colour. You may also like: Simplifying Algebra Colouring Activity Autumn Maths Puzzles To view my other resources please go to Maths Shop

Percentage of Amounts There are 25 answers on the answer sheet, but only 24 questions. The challenge is for students to match all the questions to their corresponding answers and find the extra answer. When they find the extra answer, they can create their own question for it. This resource can be used as a worksheet, or you can read out the questions and let students cross off their answers in a quiz/bingo style. The questions are non-calculator. All answers are included. The document is 6 pages in total, but you will only need to print out 2 pages for the students. This resource can be printed in colour or black and white. You may also like: Mixed Questions Challenge Area & Perimeter Challenge Fractions of Amounts Challenge Please visit Maths Shop to see more of my resources. Keywords: numeracy, worksheet, test, non-calculator, homework, key stage 3, KS3, secondary, new GCSE 9-1, foundation, mathematics, maths revision, math review, SEN, special educational needs.

Black Friday Sales Percentage of Amounts Cyber Monday Percentage Decrease All answers are included. ✎ Contents: This resource includes: • 10 worksheets. • Teachers notes. • All answers. The worksheets included are: • Worksheet 1 - 6 questions on a pet shop with a 20% discount sale. • Worksheet 2 - 6 questions on a shoe shop with a 7% discount sale. • Worksheet 3 - 6 questions on a clothes shop with a 32% discount sale. • Worksheet 4 - 6 questions on a wedding shop with a 12½% discount sale. • Worksheet 5 - 6 questions on an electrical goods shop where the manager increases all the prices by 10% a week before the sale and then decreases them by 10% for the sale. • Worksheet 6 - 6 questions on a hat shop where the manager increases all the prices by 30% a week before the sale and then decreases them by 13% for the sale. • Worksheet 7 - A worksheet with different options for buying a toboggan. Which is the best deal? • Worksheet 8 - A worksheet with different options for buying a car. Which is the best deal? • Worksheet 9 - A worksheet with different options for buying a saxophone. Which is the best deal? • Worksheet 10 - A worksheet with various costs and discounts for buying a yacht. How much will it cost? ✦ Objectives: This resource has been designed to practice: • Finding percentages of amounts. • Finding fractions of amounts. • Finding a sale price with a percentage reduction. • Finding a sale price with a fraction discount. • Money word problems. ✽ Directions: Print out a set of worksheets for each student. These worksheets can be printed in black and white or colour. ✦ Notes: All answers are included, so you can easily mark students work. These questions should take at least an hour for students to complete. ♥ You may also like: Percentages of Amounts Halloween Maths Party Planner Halloween Spooky Houses Composite Area ☞ To view my other resources, please go to Maths Shop

Chinese New Year Maths Solving Equations Algebra This is a fun algebra activity to solve multi-step linear equations in one variable by expanding single brackets and combining like terms. It is great for Chinese New Year! The resource is printed in black and white for the students to colour in. ✦ Notes: Students solve multi-step linear equations whose solutions require expanding expressions and collecting like terms. For example, solving the equation 3(2x + 5) + 5(3x - 9) = 33 There are 24 questions. Each answer occurs twice, once with a number and once with a colour. The matching colour can then be used to colour the picture in a fun colour by number activity. This activity should take around an hour to complete. All answers are included, so you can easily mark students work. The resource is printed in black and white for the students to colour in. ✎ Contents: This resource includes: • 1 worksheet with 24 questions on solving linear equations. • 1 colouring answer sheet. • Teachers notes. • All answers. ✦ Objectives: This resource has been designed to practice: • Solving multi-step linear equations in one variable. • Expanding brackets. • Combining like terms. • Simplifying algebraic expressions. • Adding and subtracting the terms of linear expressions. • Operations with positive and negative numbers. ✽ Directions: Print out the 2 pages for each student: • the question sheet • the colouring answer sheet Save paper by having the students share the question sheet. ✷ Suggestions: Students can cut out their completed picture and use it to glue onto a New Year greeting card. Or use them to make a classroom display. ♥ You may also like: Simplifying Algebra Colouring Activity New Year Maths Secret Codes Christmas Maths Logic Puzzle ☞ To view my other resources, please go to Maths Shop

Chinese New Year Maths Simplifying Algebra Expanding Brackets Expanding Brackets and Combining Like Terms Equivalent Expressions Maths Colouring Activity. This is great for New Year fun! Students will expand and simplify linear algebraic expressions to generate equivalent expressions. For example, expanding the expression 6c - 3(c + 4h) – 2h to produce the equivalent simplified expression. All answers are included. ✦ Notes: There are 26 questions. Each answer occurs twice, once with a number and once with a colour. The matching colour can then be used to colour the picture in a fun colour by number activity. This activity should take around an hour to complete. All answers are included, so you can easily mark students work. The resource is printed in black and white for the students to colour in. ✎ Contents: This resource includes: • One worksheet with 26 questions on simplifying algebraic expressions by expanding single brackets and combining like terms. • One answer key sheet for students to fill in. • One colour by number picture for students to colour in. • Teachers notes. • All answers. ✦ Objectives: This resource has been designed to practice: • Expanding single brackets. • Combining like terms. • Simplifying algebraic expressions. • Adding and subtracting the terms of linear expressions. • Identifying when two expressions are equivalent by simplifying. • Adding and subtracting positive and negative numbers. ✽ Directions: Print out the 3 pages for each student: • the sheet of questions • the colouring answer key sheet • the colouring picture – (print in landscape mode) Save paper by having the students share the question sheet. ✷ Suggestions: Students can cut out their completed picture and use it to glue onto a New Year greeting card. Or use them to make a classroom display. ♥ You may also like: Simplifying Algebra Colouring Activity New Year Maths Secret Codes Christmas Maths Logic Puzzle ☞ To view my other resources, please go to Maths Shop

Easter Maths Simplifying Algebra Collecting Like Terms Equivalent Expressions Maths Colouring Activity. This is great for Easter fun! Students will collect like terms to generate equivalent expressions. For example, simplifying the expression 5e – 2a – 3e + 4a ✦ Notes: There are 28 questions. Each answer occurs twice, once with a number and once with a colour. The matching colour can then be used to colour the picture in a fun colour by number activity. This activity should take around an hour to complete. All answers are included, so you can easily mark students work. The resource is printed in black and white for the students to colour in. ✎ Contents: This resource includes: • One worksheet with 28 questions on simplifying algebraic expressions by collecting like terms. • One answer key sheet for students to fill in. • One colour by number picture for students to colour in. • Teachers notes. • All answers. ✦ Objectives: This resource has been designed to practice: • Collecting like terms. • Simplifying algebraic expressions. • Adding and subtracting the terms of linear expressions. • Identifying when two expressions are equivalent by simplifying. • Adding and subtracting positive and negative numbers. ✽ Directions: Print out the 3 pages for each student: • the sheet of questions • the colouring answer key sheet • the colouring picture Save paper by having the students share the question sheet. ✷ Suggestions: Students can cut out their completed picture and use it to glue onto an Easter greeting card. Or use them to make a classroom display. ♥ You may also like: Easter Maths Fun Puzzles April Fool’s Day Fun Joke Maths St Patricks Day Maths Simplifying Algebra Collecting Like Terms ☞ To view my other resources, please go to Maths Shop

Area and Perimeter of Rectangles Multiplying Whole Numbers and Decimals. All questions are in inches or feet. To view this product with centimetres instead of inches please click here This resource is brilliant for practicing adding, subtracting, multiplying and dividing and involves some decimals. There are 8 worksheets with a total of 48 questions on the area and perimeter of rectangles. There are 2 versions of this resource so that you can print in black and white or colour. ✎ Contents: This resource includes: • Worksheet 1 – 6 questions to find the perimeter of rectangles when given the length and width. • Worksheet 2 – 6 questions to find the area of rectangles when given the length and width. • Worksheet 3 – 6 questions to find the length of rectangles when given the perimeter and width. • Worksheet 4 – 6 questions to find the length of rectangles when given the area and width. • Worksheet 5 – 6 mixed questions to find the missing measurement for rectangles. • Worksheet 6 – 6 questions to find the missing measurement for real life objects. • Worksheet 7 – 6 questions to find the area of rectangles when given the perimeter and width. • Worksheet 8 – 6 questions to find the perimeter of rectangles when given the area and width. • Teachers notes. • All answers. ✦ Objectives: This resource has been designed to practice: • Solving word problems. • Finding the perimeter of rectangles. • Finding the area of rectangles. • Finding missing sides when given the perimeter of rectangles. • Finding missing sides when given the area of rectangles. • Using imperial units of measure for length and area. • Operations with integers – add subtract, multiply and divide. • Operations with decimals. ✽ Directions: Print out a set of 8 worksheets for each student. There are 2 versions so that you can print in black and white or colour. ✦ Notes: The answers should be worked out and not measured with a ruler. The rectangles are not accurately drawn, but can be used for students to visualise the word problems. These questions should take at least an hour to complete. ♥ You may also like: Compound Area Please visit Maths Shop to see more of my resources.

Maths Recipe Questions GCSE 9-1 Maths for Fairy Cakes Cupcakes Ratio Proportion Word Problems GCSE 9-1 Maths Questions in Ounces US Customary Measures This is a set of 8 proportion worksheet based on recipes for fairy cakes and buttercream. The units are in ounces. To view this resource with metric units please click here ✎ Contents: This resource includes: • A recipe page with recipes for vanilla cupcakes and vanilla frosting. • A more difficult recipe page with recipes for chocolate cupcakes and chocolate frosting. • 8 worksheets with a total of 21 multi-step questions. • Teachers notes. • All answers. �� Objectives: To practice: - • Using proportional relationships to solve multi-step ratio problems. • Recognizing and representing proportional relationships between quantities. • Using ratio and rate reasoning to solve real-world and mathematical problems. • Understanding the concept of a unit rate in the context of a ratio relationship. • Understanding the concept of a ratio to describe a ratio relationship between two quantities. • Working with fractions and decimals. ✽ Directions: Print out a set of worksheets for each student. You can print out a recipe sheet for each student or laminate one for students to share. ✦ Notes: The vanilla recipe questions are easier. The chocolate recipe questions involve some fractions and decimals. All answers are included, so you can easily mark students work. ♥ You may also like: Fractions Colouring Activity Collecting Like Terms Colouring Activity Solving Equations Colouring Activity Times Tables Colouring Activity ☞ Visit my Maths Shop here.

Ratio GCSE Revision Questions Sharing money in a ratio. There are 5 worksheets. All answers are included. • Worksheet 1 – a given amount of money is to be shared in a ratio between 2 people. • Worksheet 2 – a given amount of money is to be shared in a ratio between 3 people. • Worksheet 3 – a ratio between 2 people is given and you are told that one person gets a certain amount of money. Students need to find out how much money the other person gets. • Worksheet 4 – a ratio between 2 people is given and you are told that one person gets a certain amount of money more than the other person. Students need to find out how much money each person gets. • Worksheet 5 – a ratio between 3 people is given and you are told that two of the people get a certain amount of money between them. Students need to find out how much money each person gets. Students are also asked what fraction of the money one of the people gets. These questions can be done without a calculator. The document is 10 pages in total, with 5 pages to print for students. The worksheets can be printed in colour or black and white. To view my other resources, please visit Maths Shop

Math - Simple and Compound Interest Questions ($) - Percent For the UK version of this resource in £, please click here Simple and Compound Interest Percent Questions. There are four worksheets each with a hard exam style simple and compound interest comparison word problem and a further worksheet with 6 questions. All answers are included. These are calculator questions. Money is in US dollars ($). This resource can be printed in color or black and white. The document is 8 pages in total, with 5 pages to print for students. To view my other products or for any questions, please go to: Maths Shop

Perimeter in inches This resource uses inches. For centimetres, please click here Contents: This resource includes: • 8 worksheets with a total of 32 multi-step questions to find perimeters. • Teachers notes. • All answers. Objectives: To practice: - • Finding the perimeter of squares, triangles, hexagons and pentagons. • Finding the length of sides from the perimeter. • Multiplication and division methods. Directions: Print out a set of worksheets for each student. You can use the “fit to page” option on your printer. Alternatively, laminate one set of worksheets for students to share. Or display for your class on a smartboard. Notes: All answers are included, so you can easily mark students work. To view my other resources, please go to Maths Shop

Valentines Day Math Word Problems with Dollars (US Version with dollars $) To view this resource with UK pounds £, please click here. Valentines Day Math Word Problems. These are Valentines Day themed math questions perfect for your Valentines Day maths lessons!<br /> There are 10 worksheets with a total of 56 questions.<br /> <br /> ✎ Contents: <br /> This resource includes:<br /> • Worksheets 1, 2, 3 & 4 – A total of 14 valentines word problems.<br /> • Worksheets 5, 6 & 7 – A total of 28 hearts to match into 14 pairs. Each heart has a different maths problem to solve.<br /> • Worksheets 8, 9 & 10 – A set of 14 questions about buying Valentines gifts with a fraction or percentage of an amount of money.<br /> • Teachers notes.<br /> • All answers.<br /> <br /> ✦ Objectives:<br /> This resource has been designed to practice:<br /> • Solving word problems.<br /> • Word problems involving money.<br /> • Basic operations – add, subtract, multiply and divide.<br /> • Percentages of amounts<br /> • Percentage increase.<br /> • Fractions of amounts.<br /> • Polygon names.<br /> • Large numbers.<br /> • Exchange rates.<br /> • Positive and negative numbers.<br /> • Indices – Square and cube numbers.<br /> • Converting units of time.<br /> • Standard form.<br /> <br /> ✽ Directions:<br /> Print out a set of 10 worksheets for each student. <br /> You can print in colour or use the black and white version.<br /> Alternatively, laminate one set of worksheets for students to share.<br /> Or display for your class on a smartboard.<br /> <br /> ✦ Notes:<br /> All answers are included, so you can easily mark students work.<br /> These questions should take around an hour for students to complete.<br /> <br /> ✷ Suggestions:<br /> Students could cut out the hearts to match them into pairs, or they could colour matching pairs in the same colour on the worksheets.<br /> <br /> ♥ You may also like: Valentine’s Day Maths Puzzles To view my other resources, please go to Maths Shop.