Chapter 1

Simplification and Approximation

Applying BODMAS for multi-operator equations

medium • 1 min read

Square and Cube root shortcuts for speed maths

medium • 2 min read

Percentage to fraction conversion for speed calculation

medium • 3 min read

Rounding off values for approximation methods

medium • 4 min read

Handling multi-variable equations for speed entry

medium • 5 min read

Chapter 2

Number Series

Finding the missing number in a numeric sequence

medium • 1 min read

Identifying the wrong term in a given number series

medium • 2 min read

Pattern analysis for arithmetic/geometric series

medium • 3 min read

Difference of differences (Two-tier) logic series

medium • 4 min read

Predicting the end-term of a non-linear series

medium • 5 min read

Chapter 3

Quadratic Equations

Finding roots of quadratic equations (X and Y)

medium • 1 min read

Comparison of X and Y roots: Relationship finding

medium • 2 min read

Solving quadratic equations using factorisation

medium • 3 min read

Equations with larger coefficients and shortcuts

medium • 4 min read

Linear vs Quadratic relationship comparisons

medium • 5 min read

Chapter 4

Ratio, Proportion and Average

Ratio scaling and sharing problems for three

medium • 1 min read

Percentage: Basic calculation and changes on sum

medium • 2 min read

Averages of numbers, age and weight for groups

medium • 3 min read

Partnership: Investment and profit sharing ratio

medium • 4 min read

Weighted mean calculations for complex sets

medium • 5 min read

Chapter 5

Time and Work basics

Time and Work basics: Individual and group tasks

medium • 1 min read

Pipes and Cisterns: Tank filling and empty logic

medium • 2 min read

Alternate day working patterns analysis in work

medium • 3 min read

Efficiency comparison between two workers

medium • 4 min read

Solving linear word problems on work and wages

medium • 5 min read