Indices show where a number has been multiplied by itself, eg squared or cubed, or to show roots of numbers, eg square root. Check your understanding of the process with this National 5 Maths quiz.

Let's look at two different methods for expanding double brackets. Question 1 asks you to expand the brackets 2𝑥 add 8 multiplied by 𝑥 subtract 3. Let's use the grid method for this one. In a grid ...