Post on 05-Jan-2016
transcript
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
AlgebraAlgebra
Collecting Like Terms
Removing Brackets
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Removing Brackets & Simplifying
Evaluating Expressions & Formulae
Solving Simple Equations
Solving Equations with Brackets
Constructing Formulae
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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1. A TV has been reduced in the sale
by 20%. I t was £250. How much is it now.
3. 30% of £300
4. Tidy up the expression
5y + 3d +4d + 10y
5. Find the area and
2. Simplif y the ratio 16:64
perimeter of the shape.6cm
2cm
2cm
3cm
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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1.1. Understand the Understand the techniques for simplifying techniques for simplifying terms.terms.
1. We are learning to simplify terms.
AlgebraAlgebraSimplifying Algebraic Expressions
2.2. Be able too simplify Be able too simplify algebraic expressions.algebraic expressions.
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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AlgebraAlgebraSimplifying Algebraic Expressions
Collecting LIKE terms
- m + a
1 + 4g (NOT 5g )
7 k2 (NOT 7k6)
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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AlgebraAlgebraSimplifying Algebraic Expressions
Multiplying Terms
6 d
4 h
(NOT 2e )
8 (NOT 8a)
e2
a2
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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AlgebraAlgebraSimplifying Algebraic Expressions
Dividing Terms
4
3 e
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
Below is a floor plan of the down stairs of a house.
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y 5
y
3y2+ 8y + 15
Living Room
KitchenBathroom
Bedroomy2 5y
3y 15
Tidy up !
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AlgebraAlgebraSimplifying Algebraic Expressions
What is the total area of the
downstairs house?
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try TJ3a
Ex 1Ch7 (page 54)
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AlgebraAlgebraRemoving Brackets
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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1. Find the perimeter and area of the shape.
3. Find all the missing angles.
2. Calculate (a) (-3m) x (-4m) (b) (2b) x (3a)
6h
2a
100o
60o
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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1.1. Understand the key steps Understand the key steps in removing brackets.in removing brackets.
1. We are learning how to multiply out simply algebraic brackets.
AlgebraAlgebra
2.2. Apply multiplication Apply multiplication rules rules for positive and for positive and negative negative numbers numbers when removing when removing brackets.brackets.
Removing brackets
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
3(b + 5) =3b + 15
Example
4(w - 2) =4w - 8
Example
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Removing aRemoving aSingle BracketSingle Bracket
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
8(x + 3) =8x+ 24
Example
4(3 -2m) = 12 - 8m
Example
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Removing aRemoving aSingle BracketSingle Bracket
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
Example : Write down an expressionfor the amount indicate belowin two difference ways.
5(y - 2) = 5y - 10
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Removing aRemoving aSingle BracketSingle Bracket
y-2
y-2 y-2
y-2y-2
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
a(b + 5) =ab + 5a
Example
p(w - 2) =pw - 2p
Example
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Removing aRemoving aSingle BracketSingle Bracket
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
y(y - 1) = y2 - y
Example
7w(w - 3) =7w2 - 21w
Example
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Removing aRemoving aSingle BracketSingle Bracket
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
a(a2 + 3b) =a3 + 3ab
Example
y2(3y -2c) =3y3 - 2cy2
Example
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Removing aRemoving aSingle BracketSingle Bracket
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
-(x + y) = -x - y
Example
-5(a - 7) =-5a + 35
Example
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Removing aRemoving aSingle BracketSingle Bracket
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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AlgebraAlgebra
y + 5
4
Question : Find the area of the rectangle (i) With brackets(ii) Without brackets.
Removing brackets
= 4(y + 5)
(i) A = L x B
(ii) = 4(y + 5)= 4y + 20
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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1. Remove brackets and simplif y 5f - (f - 4)
2. Calculate the perimeter of the rectangle.
3cm
(x-6)cm
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try TJ3a
Ex 2Ch7 (page 56)
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AlgebraAlgebraRemoving Brackets
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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1.1. Understand the key steps Understand the key steps in removing brackets and in removing brackets and simplifying.simplifying.
1. We are learning how to multiply out simply algebraic brackets and collecting like terms.
AlgebraAlgebra
2.2. Apply multiplication Apply multiplication rules rules for positive and for positive and negative negative numbers numbers when removing when removing brackets.brackets.
Removing brackets
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
7 + 3(4 - y) =7 + 12
Example
9 - 3(8 - y) =9 - 24
Example
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Removing aRemoving aSingle BracketSingle Bracket
- 3y= 19 - 3y
+ 3y
Tidy Up
= -15 + 3y
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Tidy Up
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
A = 10(x – 2)
Example
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Removing aRemoving aSingle BracketSingle Bracket
Find my Area (x - 2)
10
Find my Areax
12
A = 12x
A = L x B A = L x B
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
4(m - 3) - (m + 2) =4m - 12 - m - 2
Example
Example
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= 3m - 14
7(y - 1) - 2(y + 4) =7y - 7 - 2y - 8 = 5y - 15
Tidy Up
Removing Two Single Removing Two Single BracketsBrackets
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Tidy Up
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
Example : Find area of the orange border
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Removing aRemoving aSingle BracketSingle Bracket
(x - 2)10
x
12 Area =Big Rec – Small Rec
= 12x – 10(x - 2)
= 12x
= 2x + 20
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-10x+ 20
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
Calculate difference if
y = 14
Diff = 3 x 14 – 8= 34
A = 4(y – 5)
Example : Find an expression for the difference inthe areas.
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(y - 5)
47 A = 7(y - 4)
(y - 4)Difference = 7(y - 4) - 4(y – 5)
= 7y - 28= 3y - 8
Removing Two Single Removing Two Single BracketsBrackets
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- 4y + 20
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
Calculate difference if
x = 4
Diff = 2 x 4 + 20
=28
A = 7(x + 1)
Example : Find an expression for the difference inthe areas.
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(x + 1)
79 A = 9(x + 3)
x + 3Difference = 9(x + 3) - 7(x + 1) = 9x + 27
= 2x + 20
Removing Two Single Removing Two Single BracketsBrackets
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– 7x - 7
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
As= 4(x - 3)
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AlgebraAlgebra
x
6
Question : Find the area of the large rectangle, then the small rectangle and hence find the area of the red section.
4x-3
Removing Brackets & Simplifying
Ab= 6x
= 4x
As= 6x - 4(x - 3)= 6x = 2x + 12
- 12
- 4x+ 12
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try TJ3a
Ex 3Ch7 (page 57)
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AlgebraAlgebraRemoving Brackets
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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20 4
2. The ratio of apples to pears is 3:1.
I f there are 24 pieces of f ruit in total.
How many apples are there.
x x x x
x
1. Mulitply out and simplify
3. Factorise
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
EquationsEquationsw
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2.2. Solving simple algebraic Solving simple algebraic equations.equations.
1. To revise Level 2 using the rule
‘‘Balancing Method’Balancing Method’
Revision of Level 2
1.1. Understand the process of Understand the process of thethe
‘‘Balancing Method’Balancing Method’
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
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Balancing MethodBalancing Methodw
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4
44
4
Kirsty goes to the shops every week to buy some potatoes. She always buys the same total weight. One week she buys 2 large bags and 1 small bag. The following week she buys 1 large bag and 3 small bags.
If a small bags weighs 4 kgs. How much does a large bag weigh?
What instrument measures balance
How can we go about solving this using balance ?
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr Lafferty Maths DeptCreated by Mr Lafferty Maths Dept
Balancing MethodBalancing Methodw
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4 44
4Take a small bag away
from each side.
Take a big bag away from each side.
We can see that a big bag is equal to
4 + 4 =8 kg
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr Lafferty Maths DeptCreated by Mr Lafferty Maths Dept
Balancing MethodBalancing Methodw
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P P4 P
44
4Lets solve it using maths.
Let P be the weigh of a big bag.
We know that a small bag = 4
2P + 4 P + 12
What symbol should we use for
the scales ?
= Subtract 4 from each
side-4 -4
2P=P + 8Subtract P from each
side-P -P
P=8
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr Lafferty Maths DeptCreated by Mr Lafferty Maths Dept
Balancing MethodBalancing Methodw
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Group of 5 adults and 3 children go to the local swimming.Another group of 3 adults and 8 children also go swimming.The total cost for each group is the same. A child’s ticket costs £2.
If a child’s ticket costs £2. How much for an adult ticket ?
a a 2
a 2
a a 2Let a be the price of an adult ticket.
We know that a child price = £2
2 aa
2 a
2 22
2 22
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr Lafferty Maths DeptCreated by Mr Lafferty Maths Dept
Balancing MethodBalancing Methodw
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5a + 6 3a + 16=
Subtract 6 from each
side
-6 -6
5a=3a + 10
Subtract 3a from each
side
-3a -3a
2a=10
a a
a
a a
2
2
2
aa
a
2
2
2
2
22
22
Divide each side by 2
a=5
Adult ticket price is £5
1
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr Lafferty Maths DeptCreated by Mr Lafferty Maths Dept
Balancing MethodBalancing Methodw
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It would be far too time consuming to draw out
the balancing scales each time.
We will now review how to use the rules for solving equations.
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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Revision of Level 2
Examples
EquationsEquations
x – 5 = 11+ 5 + 5
x = 16
x + 8 = 37- 8 - 8
x = 29
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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Revision of Level 2
Examples
EquationsEquations
6x = 72
x = 12
(÷ 6)
2x = 11
x = 5.5
(÷ 2)
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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Revision of Level 2
Examples
EquationsEquations
½x = 5
x = 10
(x 2)¾x = 9
3x = 36
(x 4)
x = 12(÷ 3)
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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Revision of Level 2
Examples
EquationsEquations
4x – 2 = 34+ 2 + 2
4x = 36
x = 9
(÷ 4)
2x + 9 = 31- 9 - 9
2x = 22
x = 11
(÷ 2)
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try TJ3a
Ex 4Ch7 (page 58)
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AlgebraAlgebraRemoving Brackets
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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1. I have an infi nite amount of line symmetry.
What is my shape?
2. Remove brackets 4(5k - 8)
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
EquationsEquationsw
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1. We are learning how to solve equations with brackets and fractions .
1. Remember rule for Multiply out brackets.
2. Apply ‘Balancing Method’ to solve fractional equations.
Equations with Brackets
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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Multiply out the brackets first and then
Balancing Method
Equations with Brackets
EquationsEquations
3(x – 2) = 33
3x - 6 = 33
3x = 39
+ 6 + 6
x = 13(÷ 3)
Example
Each group has 2 minutes come up with a method for solving this type of
equation
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
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Example
Equations with Brackets
EquationsEquations
5(3x + 2) – 2(4x - 3) = 2x + 36
7x + 16 = 2x + 36- 16 - 167x = 2x + 20- 2x - 2x
5x = 20(÷ 5)
x = 4
15x + 10 – 8x + 6 = 2x + 36Tidy up terms !
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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Multiply EVERY term to get rid of fractional term.
and then apply ‘Balancing Method’
Equations with Fractions
EquationsEquations
x + 3 = 712
(x 2)x + 6 = 14
x = 8
- 6 - 6
Each group has 2 minutes come up with a method for solving this type of
equation Example
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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Equations with Fractions
EquationsEquations
x - = 434
(x 4)3x - 2 = 16
3x = 18
+ 2 + 2
12
(÷ 3)
x = 6
Multiply EVERY term to get rid of fractional term.
and then apply ‘Balancing Method’
Example
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try TJ3a
Ex 5Ch7 (page 59)
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AlgebraAlgebraRemoving Brackets
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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1. My shape has 2 pairs of parallel lines
equal lengths and opposite angles are equal.
What is my shape?
1 12. Calculate of
3 4
3. Remove brackets and simplif y 4e- (8e -12)
4. Calculate the perimeter of the rectangle.
7cm
(x+2)cm
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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1. We are learning how to evaluate an expression.
1. Be able to substitute numbers for letters in an expression.
AlgebraAlgebra
2. Use previous knowledge of Number to evaluate a expression.
Evaluating Expressions – number for letter
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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AlgebraAlgebraEvaluating Expressions – number for letter
Given the following information find the values of :-
a = 3 ; b = 4 and c = -1BODMAS
2a + c
= 2x3 + (-1)
= 2x3 - 1= 6 - 1
= 5
b2 – a2
= 42 – 32
= 16 – 9
= 7
2b2
= 2x(4)2
= 2x16
= 32
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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AlgebraAlgebraEvaluating Expressions – number for letter
Given the following information find the values of :-
a = 3 ; b = 4 and c = -1
2a2 + 3b + 30c
= 2x(3)2 + 3x4 + 30x(-1)
= 18 + 12 - 30
= 0
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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AlgebraAlgebraEvaluating Expressions – number for letter
Given the following information find the values of :-
d = 3 ; e = 4 and f = -1BODMAS
2(d - f)
= 2(3 -(-1))
= 2 x 4= 8
¾(d + f2)= ¾(3 + (-12))
= ¾(4)
= 3
√(16e)
= √(16x4)
= √64
= 8
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try TJ3a
Ex 6Ch7 (page 60)
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AlgebraAlgebraRemoving Brackets
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
ww
.math
srevis
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angles and adjcent lengths are equal.
What is my shape?
2. Find the highest common f actor f or
(a) 12 and 24 (b) 2x and 10x
3. Calculate 6a+ 5ab when a=(-1) b=(-2)
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
www.mathsrevision.comwww.mathsrevision.comww
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1. To explain how to work with formulae expressed in words.
1.1. Understand formulae Understand formulae expressed in words.expressed in words.
Formulae
2.2. Solve problems given Solve problems given formulae in words.formulae in words.
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
Sometimes formulae are expressed in words.
Formulae
A tile fitter charges £20 per hour.
How much will he charge for 8 hours of work.
C = 20xh
For h = 8
C = 20 x 8 =
£160ww
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
Formulae
The cost for hiring a carpet cleaner is
£30 plus £3 a day
How much will it cost to hire for a week.
C = 30 + 3d
For d = 7
C = 30 + 3 x 7 =
£51w
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MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
Formulae
Profit :
Subtract how much you paid for goods in the first place from the amount you actually sold them for.
How much profit did Daniel make if he bought a CD for £9.99 and sold it for £12
Profit = 12 – 9.99 =
£2.01w
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p = s - b
MTH 3-14aMTH 3-15aMTH 3-15bMTH 4-14aMTH 4-15a
20 Apr 202320 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try TJ3a
Ex 7Ch7 (page 62)
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AlgebraAlgebraRemoving Brackets