MATH MAGIC
The Human Calculator Shows How to Master
Everyday Math Problems in Seconds
SCOTT FLANSBURG
"The Human Calculator"with Victoria Hay, Ph.D.
INTRODUCTION
PART I
THE BASICS
- Five Keys to Human Calculating
- Addition
- Cross-Multiplication
- Complementary Multiplication
- Box Multiplication
- Squaring
- A Hatful of Multiplication Tricks
- Subtraction
- Division
- A Hatful of Division Tricks
PART II
PARTS OF NUMBERS
- Finding Square Roots
- Finding Cube Roots
- Fractions and Decimals
- Percentages
PART III
HANDY THINGS TO KNOW
- Simplifying Math by Estimating
- Quick-Check Your Answers
- How We Measure Things
- The Calendar Formula
PART IV
MATH IN REAL LIFE
- Tips, Tax, and Change
- Time: Jet Lag, Military Hours, Telling Time
- How Big Is the Back Forty?
PART V
THE NEXT STEP
- Introducing Algebra
- A Test of Your Human Calculating
PART VI
APPENDICES
GLOSSARY
TABLES
Tables of Weights and Measures
The Metric System
Conversion Table-Metric and English Systems
Squares, Cubes, Square Roots, Cube Roots of Numbers
ANSWERS TO MATH PROBLEMS
|Contact| |Front page| |Contents| |Books|
Copyright © 1996-2018 Alexander Bogomolny