Rounding numbers
Why round numbers? We use rounding of numbers to find a number near to the one we already have that ...
Factors and multiples
What are factors and multiples? A factor is a number that will divide exactly into a given number, leaving a ...
Square and cube numbers
Square numbers You may have noticed that some questions we have looked at involve multiplying a number by itself, like ...
3D geometry
When it comes to looking at 3d geometry with three-dimensional shapes there are no new rules that we must learn ...
Finding the area of a triangle using Trigonometry
In a previous post we learnt that the area of a triangle is \( \frac{1}{2} \times base \times height \), ...
All about Trigonometry
What is trigonometry? Trigonometry is a very powerful technique in mathematics and deals with the sides and angles of triangles. ...
Equations involving algebraic fractions
The techniques that we have already discussed will now be put in place to help us solve equations that use ...
Factorising equations
How to factorise In an earlier post we looked at trying to multiply out brackets like \( (x+1)(x+2) \). However, ...
Working with irrational numbers
An irrational number is one which cannot be expressed as a definite decimal as it continues on forever. For example, ...
Collecting data
There are many different methods that can be used when collecting data. Firstly, we must have a group of people ...
Composite shapes
A composite shape is simply an irregular shape which is made up of several simpler objects. The way to find ...
Area of a triangle
Area of a triangle As you can see from the table shown previously, the area of any triangle is found ...