GCSE Maths Starter 1 Continue the next two in the sequence:

Slides:

Advertisements

Similar presentations

Equations with the unknown on both sides.

Advertisements

Lesson 8 Expand and Simplify. Mathswatch 103

Level D 8-Jun-15Created by Mr.Lafferty Maths Dept Algebra Cover Up Method Equations Function Machine.

Intro to Algebra/Geometry Solving Equations by Adding or Subtracting.

GCSE Maths Starter 18 1.Write down the reciprocal of ¼ 2.A small pot costs 20 pence. A large pot costs 150% more, how much does the large pot cost? 3.Copy.

Lesson 4: Percentage of Amounts.

Unit 1: Number Sense Minds On. Unit 1: Number Sense Lesson 7 - Substitution Learning Goal I can evaluate expressions containing variables by substituting.

GCSE Maths Starter 2 1.Evaluate 32 x 9 2.Find the median of 13, 6, 15, 9. 3.What is ¾ of 200? 4.Solve the equation to find x: 2x+1 = 13 5.If I am driving.

Solving Equations Grade 5 Math.

ALGEBRAIC EQUATIONS. EQUATIONS AND SOLUTIONS  A correct equation is like a balance scale.  In order to determine if a given value for a variable is.

Lesson 5 Index Laws and Simplifying Algebra. Mathswatch 102/111.

Solving Two Step Equations

Whiteboardmaths.com © 2008 All rights reserved

Equation Invasion Objective: I can create and solve one-step equations using inverse operation.

Mrs. Ennis Number and Shape Patterns Lesson 42

Review of Radicals and Quadratic Equations Lesson 9.1.

The Equation Game. Why is an equation like a balance scale? 3 2x - 1 =

Equation y + 5 y + 5 = 20 Expressions

WHAT’S THE MISSING LETTER? Or How to solve Algebraic Equations 4y + 4 – y = y + 28 (they really won’t be this long)

How many stars is a face worth?. Your turn Write down the equation each time you alter the scales. Remember to take the same things off each side!

Learn to identify and evaluate expressions. WARM-UP Please answer the questions below showing all your work! = – 189 = 3.46 x 847=

Solving Two- Step Equations Lesson 2-2. Rules to Remember When solving an equation, the goal is to get the variable by itself. Addition and Subtraction.

Solve equations using addition and subtraction.

Ms. Drake 7th grade Math Number Theory Lesson 20 Solving Equations by Adding or Subtracting.

ON YOUR DESK COPY THE AGENDA DO PROBLEMS 7 (PG 1) AND 44 (PG 11) IN OAA NOTEBOOK GET NOTES OUT.

Solving Equations When do we use solving equations? We use solving equations methods when we know what the problem equals but not what the variable is.

Using Number Sense to Solve One-Step Equations Lesson 2-5 & 2-6.

Solving Equations Inverse operations. INVERSE = Opposite If I am solving an equation using inverses operations, I am solving it using opposite signs.

One-Step Equations I can show that solving an equation leads to finding the value that makes the equation true.

Solving Two- Step Equations

Transparency 3 Click the mouse button or press the Space Bar to display the answers.

GCSE Maths Starter 15 20−12÷4 Solve 4x + 3 = 18 – 2x

Solving Equations. To solve an equation, you must isolate the variable (get the letter by itself). You do this by using opposite operations to undo what’s.

Subtraction Equations SWBAT solve subtraction equations using the addition property of equality when the minuend is unknown; solve subtraction equations.

One-Step Addition and Subtraction Equations

By, Mrs. Muller.  Recall the following properties when solving these types of equations:  Addition property of equality: a=b, then a+c=b+c, or 2x3=6,

By Mrs. Muller. Key Vocabulary  Equation: mathematical sentence that has an equal sign, =.  Isolate: to get it alone  Variable: a letter representing.

Solving Addition and Subtraction Equations Lesson 2.3 and 2.4.

Equations. An equation is a mathematical statement that shows 2 quantities are equal. An equation.

Solving Equations Performing inverse operations on both sides (Involves backtracking)

Solving Absolute Value Equations Lesson 4-3. Vocabulary Review Absolute Value: The distance between 0 and a number Equation: A math sentence/statement.

SECTION 3-3 Solving Algebraic Equations: Multiplication and Division.

What is an Equation  An equation is an expression with an ‘equal’ sign and another expression.  EXAMPLE:  x + 5 = 4  2x – 6 = 13  There is a Left.

Solving Equations. An equation links an algebraic expression and a number, or two algebraic expressions with an equals sign. For example: x + 7 = 13 is.

Equations With Fractions Lesson 4-6. Remember the Process: Isolate the variable Perform the inverse operation on the side with the variable. Perform the.

Solving Addition and Subtraction Equations An equation is a mathematical sentence that contains an equal sign.

Two-Step Equations Review 1-Step 2-Step Equations Practice Problems.

Textbook pages 69 & 73 IAN pages 91 & 95. Each side of the equation must be balanced. We balance an equation by doing the same thing to both sides of.

Intro to Expressions & Equations ___________________________________________________ __________ Algebra 1 – Solving Equations - Math is Hip ™ Prerequisite.

Solving Absolute Value Equations

Solving Addition and Subtraction Equations

Equations With Fractions

Warm-Up 13 x 3 14 x 4 12 x 11 9 x 13.

Warm Up Simplify each expression. 1. 3x + 2y – 5x – 2y

Maths Unit 9 – Forming & Solving Equations

Solving Linear Equations

Solving Two- Step Equations

Solving Equations Grade 5 Math.

Solving Two- Step Equations

by Monica Yuskaitis, M.A.Ed

Learn to solve equations using addition and subtraction.

Solving Division Equations

Solving Equations by 1-2 Adding or Subtracting Warm Up

10/3/11 In your notebook, answer completely the following:

Learn to solve equations with integers.

Involving One Operation

Grade 6 Patterning and Algebra Unit

Algebra Revision.

Think back to last lesson:

Maths Unit 7 (F) – Equations & Sequences

Presentation transcript:

GCSE Maths Starter 1 Continue the next two in the sequence: 2, 8, 14, 20…. Find the mean of 12, 7, 13, 8. If a = 4, b = 5 What is the value of 8a-6b? What is 5² - 3² A) Name the shape B) Find the size of the missing angle, a: Explain your answer. 105 72 108 a

Lesson 1 Equations Mathswatch clip 105 To know what an equation is. To use inverse operations to solve two step equations. (Grade D) To solve equations with brackets in. (Grade D/C) EXTN: To solve equations with unknowns on both sides. (Grade C)

Lesson 1 Equations Mathswatch clip 105 An equation means that two things are equal. A pair of scales is sometimes used to show equations because when both sides balance they are equal. The scales below show that the expression 2x + 5 is equal to the quantity 21, where x is the number of marbles in each bag. Can you find what x must be worth? 2x + 5 = 21 x x 2x + 5 21

Unknowns One Side: Caterpillar Method 3 n Whatever happens to the letter on the way there, we must do to the OPPOSITE on the way back.. + 5 = 10 2 +  - x   n 2 3 + 5 n 3n 3n + 5 x 3 + 5 ÷ 2 n =5 15 20 10 So n = 5 ÷ 3 - 5 x 2

Unknowns One Side: Caterpillar Method 5 ( ) n + 4 6 Whatever happens to the letter on the way there, we must do to the OPPOSITE on the way back.. = 8 3 +  - x   + 4 x 5 6 ÷ 3 8 n =2 6 30 24 - 4 ÷ 5 + 6 x 3 So n = 2

Unknowns Both Sides: Move the smallest amount of the letter then Caterpillar Method 5 n + 4 = 3 n + 14 -3 n -3 n 2n +4 = 14 Use opposites to move the smallest amount of the letter. Then use the catterpillar as normal. x 2 + 4 n =5 10 14 +  - x   ÷ 2 - 4 So n = 5

Questions + - x  Practice Equations (a) 3x + 8 = 20 x = 4 Now try these questions remembering to use opposite signs. x = 3 Solve the following equations (a) 3x + 8 = 20 x = 4 (b) 7x - 9 = 26 x = 5 (c) 5(x – 8) = - 5 x = 7 Extension Qns (d) 3x + 7 = x + 11 x = 2 (e) 6x + 5 = 4x + 10 x = 2½ (f) 5p - 3 = 2p + 9 p = 4 (g) 4y - 7 = 2y - 9 y = -1 Questions

Exam Questions for you to try. Lesson 1: Equations Exam Questions for you to try.