**Table of Contents**

** Unit 1 | Algebra**

Page 1 | Expressions and Formulae

Page 3| Solving Linear Equations

Page 4| Expanding and Factorising

Page 5| Factorising Quadratics and expanding double brackets

Page 6| Patterns and Sequences

Page 7| Simultaneous Equations

Page 8| Changing the subject of a Formula

Page 9| Adding , subtracting algebraic formulas

** Unit 2 |Graphs**

Page 1 | Straight line graphs

Page 2 | Graphs of Quadratic functions

** Unit 3 |Geometry and Measure **

Page 2 | Symmetry

Page 3 | Coordinates

Page 4 | Perimeter, Area, Volume

Page 6 | Measurement

Page 7 | Trigonometry

Page 8 | Pythagoras

Page 9 | Angles

Page 10 | Shapes

Page 11| Time

Page 12 | Locus

**Unit 4 | Numbers**

Page 1 | Speed, Distance and time

Page 2 | Rounding and estimating

Page 3 | Ratio and proportion

Page 4 | Factors, Multiples and primes

Page 5 | Powers and roots

Page 7 | Positive and negative numbers

Page 8 | Basic operations

Page 9 | Fractions

Page 10 | Percentages

** Unit 5 | Statistics and Probability **

Page 1 | Sampling data (MA)

Page 2 | Recording and representing data

Page 3 | Mean median range and mode

Page 4 | Standard deviation

**Unit 4 | Calculus **

* Percentages *

- When
**finding**the**percentage of a shape**, it is important to remember that you consider the whole shape to be**100%**.

2. Then you have to figure out what **each part represents **– if the shape is in **4 equal pieces**, each piece represents **25%** and so on.

**Example 1:**

The circle would represent 100%. It has been cut into 8 pieces – so we to find out what each piece represents we have to divide 100 by 8, which is 12.5%. 3 of pieces are shaded so this would be 37.5% shaded.

3. When **finding** the **percentage** of a **number**, there are a couple of tricks that you can use – but it’s **different** for **every percentage**.

a) You can always **find 10%** of a number by dividing it by 10 (this is because 10% is 100% divided by 10).

b) You can always find **1%** of a number by dividing it by **100**.

c) You can find **50%** of a number by **halving **

4. If you want to use a **calculator **to **find a percentage** **of a number**, all you have to do is write the **percentage** as a **decimal **then **multiply **it by that number.

**Example 2:**

Let’s say we need to find**67% of £25**.

**First** we write**67%** as a decimal – **0.67**

**0.67 x 25 = 16.75**

So, **67% of £25 = £16.75**

**1)**

**2) Place a tick against the percentage which is equal to 0.65**

**3) Tick the number equivalent to 9/100**

0.9 0.09

9.0 9.1

**4)Chang 30% to a decimal and a fraction fraction**

**5) Can you charge these fraction into decimal fractions.**

**6) Place the correct symbol : <,>,=**