# GCSE Maths: Rules

Mind Map by MegzRevision, updated more than 1 year ago
 Created by MegzRevision about 5 years ago
45
5

### Description

Mind Map on GCSE Maths: Rules, created by MegzRevision on 01/03/2015.

## Resource summary

GCSE Maths: Rules
1 Percentages
1.1.1 1.(percentage)
1.2 Taking away %
1.2.1 100 - % x 0.____
1.3 Origional Price
1.3.1 normal price x 0.(100 - %)
1.3.2 sale price / 0.(100 - %)
1.4 Compound Interest
1.4.1 x 1.(%) and then repeat
1.4.2 x (1.%) to the power 'years'
2 Expanding Brackets
2.1 :)
2.2 F.O.I.L
3 Symbols
3.1 + - = +
3.2 + + = +
3.3 - - = -
4.1 -b+- square root b squared - 4ac / 2a
5 Making the Subject
5.1 multiply out a denominator
5.1.1 factorise an xy
5.1.1.1 divide both sides by bracket
6 Circles
6.1 πr2 = area
6.2 πd = circumference
7 Graphs
7.1 y = mx + c
7.1.1.1 gradient = change in y / change in x
7.1.2 c = y intercept
7.2 Cumulative frequency = vertical axis
7.3 Interquartile range = upper quartile - lower quartile
7.4 Histograms
7.4.1 Frequency density = frequency / class width
7.4.2 Area = Frequency
8 HCF & LCM
8.1 LCM = multiply all the numbers
8.2 HCF = multiply the middle numbers
9 Angles
9.1 Corresponding
9.1.1
9.1.2 Look for an F
9.2 Alternate
9.2.1
9.2.2 Look for a Z
9.3 Interior
9.3.1
9.3.2 Looks for a C
10 Area
10.1 Pyramid
10.1.1 1/3 x base area x vertical height
10.2 Curved Surface Area
10.2.1 π x radius x slant height
10.3 Vol of Sphere
10.3.1 4/3πr
10.3.2 Surface Area
10.3.2.1 4πr2
11 Perpendicular lines
11.1 = -1
11.2 e.g. - 1/4 = 4
12 Surds
12.1 E.g. |2 * |3 = |2*3 = |6
12.2 E.g. |15 / |3 = |5
12.3 3|5 * 4|3 = 12|15
13 Probability
13.1 and = *
13.2 or = +

### Similar

Fractions and percentages
New GCSE Maths required formulae
GCSE Maths: Understanding Pythagoras' Theorem
GCSE Maths Symbols, Equations & Formulae
STEM AND LEAF DIAGRAMS
Using GoConqr to study Maths
HISTOGRAMS
FREQUENCY TABLES: MODE, MEDIAN AND MEAN
GCSE Maths: Geometry & Measures
New GCSE Maths
GCSE Maths Symbols, Equations & Formulae