Multiplying and Dividng by 25-Numbers | FastMath

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Fast Mental Math for Business — Basic

Fast Calculations with Large Numbers

No-Zero Multiplication (6:01)
Style Guidelines for Units of Magnitude
International Numerical Formats and Conventions
Zeroes Counting in Multiplication and Divisiong (Traditional Math Review)

Course Requirements and Business Math Basics

Course Math Requirements
Business Math Basics
Math Review
Math Symbols

Fast Five: The Five Most Important Sets of Methods for Fast Mental Multiplication and Division Methods for Busienss

Multiplying and Dividng by 25-Numbers (21:21)
Multiplying and Dividing by 50-Numbers (21:23)
Multiplying and Dividing by 15-Numbers (24:45)
Multiplying and Dividing by 75-Numbers (21:18)
HD Method (10:24)

Most Important Calculation Method for Business Calculation

Most Important Method — Part I (15:29)
Most Important Method — Part II (16:27)
Zero Counting and Factoring and Reordering (15:43)
Factoring and Reordering [PDF]
Factoring and Division (20:29)
Cancel Calculations
Mergers and Calculations
Fractions 2 Percentages
Common Multiplication and Division Methods [PDF]
Fast Percentage Multiplication

First-generation FastMath Multiplication and Division Videos

Section Overview
Fast Multiplication Methods (20:01)
Division and Factoring — Part I (10:21)
FastMath Overview (13:09)
Division and Factor — Part II (13:10)
Fast Factoring Facts

Fast Breakeven and Profitability Calculations

Fast Simple Profitability and Breakeven Calculations
Breakeven Example (7:32)

Fast Market Sizing and Estimation Calculations

Fast Market Sizing and Estimation Overview (9:19)
FastMath Universal Market Sizing Framework (4:32)
Market Sizing Example (15:03)
Market Sizing Recommendations and Best Practices (3:23)
Fast Market Sizing Demographic Data

Fast Compound Growth Calculation Methods

Introduction to Compound Growth
Fast Compound Growth Calculation Methods
Estimating Doubling Time with Commpound Growth (9:07)
CAGR Calculations

Fast Investment Decision Calculations

Introduction to Net Present Value (NPV)
Net Present Value of Recurring Payments (Perpetuities) (13:51)
Perpetuities with Growth (13:10)

Conclusion

Conclusion

Appendix I: Overview of Case Interviews and Math in Case Interviews

McKinsey Full Case — Catalog Retailer
BCG Full Case — Customer Segmentation Strategy
Why Calculation Skills are Critical in Case Interviews

Appendix II: Introduction to Mental Math Essentials for Busienss

Course Overview: Mental Math Essentials for Business (18:52)
New in FastMath V2.0 (21:06)
Story of FastMath (22:17)

Appendix III: Fast Additional and Subtraction Methods

Fast Addition and Subtraction Methods (9:27)

Teach online with

Multiplying and Dividng by 25-Numbers

S5_L1_Clean_Numbers_Part_I_25-Numbers.pdf

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