B Grade Maths

These are the topics that need to be covered and understood for B grade in GCSE Maths:

Number

• Standard form
• Percentage increase/ decrease
• Compound interest/ depreciation
• Reverse percentage
• Four rules of fractions

Algebra

• Quadratics
• Factorising
• Difference of two squares
• Simultaneous equations
• y = mx + c
• Regions
• Graphs of cubic and reciprocals
• Recognise the shapes of functions

Shape and space

• Trigonometry
• Bearings by trigonometry
• Similar shapes
• Circle theorems

Handling data

• Cumulative frequency
• Boxplots
• Moving averages
• Tree diagrams

Box plots

Handling Data boxplots

View more presentations from Steve Bishop.

Reverse percentages

An example:
Try to do the question first:

In a sale, normal prices are reduced by 12%
The sale price of a a computer is £726.
Work out the normal price of the computer

Another worked example

A hat costs £99.60 after a 17% priced reduction.
How much was it before the reduction?

Percentage increase/decrease

Interest: simple and compound