GCSE; WJEC; Basic algebra – WJEC Substitution. Algebra is very useful in the modern world where mathematics is used extensively. This includes expanding brackets, collecting terms and ...
Substitution What is substitution? Substitution means replacing a letter (variable) in a formula with a given number. How do I substitute numbers into a formula? Write down the formula. Replace (substitute) the letters in the formula with the given numbers. If substituting in a negative number, it is important to put brackets around it For example, (-3)
GCSE; AQA; Algebraic formulae - AQA Substitution. Formulae are used in everyday life, from working out areas and volumes of shapes to converting units of measurement.
Algebraic Substitution: GCSE Revision with Examples. One of the first steps of algebra is understanding that ‘letters’, known in maths as variables or unknowns, can be used to represent unknown numbers, or values. ... Substitution is important when using formulae to find real-life values to questions involving area, length, speed, and ...
Using Substitution. Substitution can be helpful in utilising formulae and equations.. For example, we know \text{Speed} = \dfrac{\text{Distance}}{\text{Time}} To utilise this helpful equation, we need to use substitution:. It takes Esme 45\text{ minutes} to travel to school, which is 3\text{ km} away. We can use substitution into the equation above the find the speed Esme travels in \text{km/h}:
Free online GCSE video tutorials, notes, exam style questions, worksheets, answers for all topics in Foundation and Higher GCSE. The content is suitable for the Edexcel, OCR and AQA exam boards. ... Substitution: Solutions: 3.14: Solving Equations: Exam Questions: Solving Equations: Solutions: 3.15: Drawing Linear Graphs: Drawing Graphs ...
SUBSTITUTION Materials required for examination Items included with question papers Ruler graduated in centimetres and Nil millimetres, protractor, compasses, pen, HB pencil, eraser. Tracing paper may be used. Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name, centre number and candidate number.
GCSE (1 – 9) Substitution Name: _____ Instructions. Use black ink or ball-point pen. Answer all Questions. Answer the Questions in the spaces provided; there may be more space than you need. Diagrams are NOT accurately drawn, unless otherwise indicated. You must show all your working out. ...
GCSE exam. Mastery Tools GCSE topics. 2 HOUR LESSONS. 1 HOUR LESSONS. Place value & ordering numbers. Adding & subtracting integers & decimals ... This video explains what substitution means in algebra and shows how to substitute variables with numbers to evaluate expressions. Substitution.
32_substitution - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document provides instructions and questions for the Edexcel GCSE Mathematics (Linear) exam on the topic of algebra and substitution. It includes 16 multiple choice and short answer questions testing skills like evaluating expressions for given values of variables, solving one-step equations, and ...
Here’s how to substitute into a basic expression: If a = 4 what is the value of 3a + 6? Step 1: rewrite the equation with in the place of letters. = 3( ) + 6. Step 2: put the specified number in the bracket =3(4) +6. Step 3: work out the equation =3(4) +6 =12 +6 =18. Substitution with more than one variable
Substitution – Full Lesson with Differentiated Resources Substitution is a complete and fully differentiated lesson ideal for GCSE revision or full class teaching. This resource is suitable for all major UK exam boards and is designed to support students from a range of abilities with scaffolded support and challenge.
Maths Kitchen provides easy to use, high quality resources and personalised revision guidance for GCSE Maths ... Substitution practice questions with video lessons to show you the steps to solve these questions. Get practising! Personalised, motivating revision for learners. Powerful homework setting and diagnostics for schools and teachers.
GCSE Exam Papers . Edexcel Exam Papers OCR Exam Papers AQA Exam Papers Eduqas Exam Papers. A Level Revision. A Level Exam Papers. ... We can instead use brackets to substitute the numbers into the expression: 4(5) + (3) 4(5) means 4 × 5 4 × 5 = 20. We now have: 20 + 3 20 + 3 = 23.
GCSE; Formulae - WJEC Substitution. Formulae are used in everyday life to calculate quantities such as wages or costs. These costs will vary depending on factors such as number of hours worked or ...
Substitution in GCSE Maths involves replacing variables with specific values in algebraic expressions or equations. It helps simplify complex expressions by making them easier to work with. This fundamental technique is essential for solving various mathematical problems in the GCSE curriculum.
Fill in the boxes at the top of this page with your name, centre number and candidate number. Answer all questions. Answer the questions in the spaces provided – there may be more space than you need. Calculators may be used. Information The marks for each question are shown in brackets – use this as a guide as to how much time to
Show All Answers Hide All Answers. Videos Substitution Practice. GCSE. Learn GCSE Maths Edexcel Exam Papers OCR Exam Papers
