Table of Contents
Unit 1 | Algebra
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 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
Fractions, Decimals and Percentages
- Fractions, decimals and percentages are all different ways to represent a quantity as part of a whole.
2. They can all be converted into each of the other forms and still represent the same amount – this means they are
3. These are some common equivalents that you should know.
1/100 = 0.01 = 1%
1/10 = 0.1 = 10%
½ = 0.5 = 50%
¼ = 0.25 = 25%
1/5 = 0.2 = 20%
- Hopefully, you will be able to use these facts to help you find out the answers for equivalents of other fractions, decimals and percentages.
Let’s say we want to find out what ¾ is as a percentage.
We already know that ¼ is 25% – ¾ must be three times bigger than this.
25% x 3 = 75%
Converting between fractions, decimals and percentages using a calculator is quite simple if you know what to do.
- You can convert a fraction to a decimal by dividing the numerator by the denominator
2. You can convert a decimal to a percentage by multiplying it by 100.
3. You can convert a percentage to a decimal by dividing it by 100.
4. You can convert a percentage to a fraction by writing the number over a denominator of 100.