ANOTHER EXAMPLE ::
Click here to see how numbers like 120342 can be multiplied by 11 in less than 5 seconds

More topics discussed inside the book ::

• Shortcuts in doing multiplication.
  • Multiplication of 2 digits with 2 digits in single line (e.g. 68 X 79)
  • Multiplication of 3 digits with 3 digits in single line (e.g. 458 X 746)
  • Multiplication with 11 (e.g. 12453 X 11 - see example in Hyper Link)
  • Tricks to make multiplication simple (e.g. 124 X 18 )
• Division
  • Divisibility rules for 2, 3, 4, 5, 6, 8 and 11
  • A unique way to find out divisibility by 7 and 13 in the minimum possible time
    (e.g. to see whether 451245786 is divisible by 7 or 13 in just 10 seconds)
  • Divisibility rules extended to know divisibility by 15, 18, 33, 45 etc
• Working with Fractions
  • Finding  =? in less than 2 Seconds
• Finding Squares.
  • Squares of numbers having 5 as last digit (e.g. 12.5²)
• Finding Square Roots.
  • Square root of whole numbers (e.g.  square root of 15625)
  • Square root of numbers with decimals (e.g. square root of 0.4)
  • Square root of mixed numbers (e.g. square root of 156.25)
• Finding Percentage with least effort
  • e.g. 7 is what percent of 0.21
  • Finding 0.5 is what percent of 0.075 in less than (10 Seconds
• Time and Work problems simplified.
  • If 8 men, working 6 hours a day, can make 12 dolls then how many men, working 8 hours a day can make 24 dolls?
• Use of Algebra for speedy calculations.
  • Evaluating 89² - 88² =? in less than 2 Seconds
  • e.g. finding 809² with the help of algebra
• And Much more...

After going through the methods mentioned in the book, you will be able to comprehend the problems very easily and your calculating speed is bound to enhance.