Chapter 1

Simplification and BODMAS

Applying BODMAS for multi-operator equations

medium • 1 min read

Square roots and Cube roots calculation for speed

medium • 2 min read

Percentage to fraction conversion for speed

medium • 3 min read

Fractional addition and subtraction methods

medium • 4 min read

Simplifying long numeric chains with speed

medium • 5 min read

Chapter 2

Approximation

Estimating near values for decimals in sums

medium • 1 min read

Approximating products and divisions for speed

medium • 2 min read

Choosing the nearest option in competitive sets

medium • 3 min read

Handling multi-step approximation in arithmetic

medium • 4 min read

Rounding off rules for banking calculations

medium • 5 min read

Chapter 3

Number Series

Finding the missing number in a logical 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 4

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 5

Arithmetic Speed Tests

Logic for finding middle numbers in tables

medium • 1 min read

Applying arithmetic shortcuts for daily calculations

medium • 2 min read

Speed calculation of interest and percentages

medium • 3 min read

Mental calculation of ratios and averages

medium • 4 min read

Identifying trends in quick numeric charts

medium • 5 min read