This document provides several methods for multiplying and squaring numbers mentally using tricks and shortcuts:
1) To multiply numbers, multiply the ones digits first, then cross-multiply and add the tens digits, and finally multiply the hundreds digits.
2) For numbers close to 100, subtract the difference from 100 to get the "base number" and multiply the differences.
3) To multiply by 11, add the digits and insert the sum between them.
4) To square a number close to 100, subtract the difference from 100 for the base number and square the difference.
5) Any number ending in 5 is easy to square, as the answer will end in 25.
Foundation warm-up questions for Maths GCSE. Have a go at these a few minutes before your Maths exam to get your brain thinking mathematically.
Good luck!
Foundation warm-up questions for Maths GCSE. Have a go at these a few minutes before your Maths exam to get your brain thinking mathematically.
Good luck!
A fun math activity for dice. Roll the dice to see what number you are subtracting. Includes thorough explanation of regrouping. Worksheet also included.
Vedic mathematics is increasingly finding acceptance the world over with their simple but effective methods of problem solving. It has been heralded as a welcome change to a subject that has been generally dreaded by children.
Amazing Math Trick-multiplication,The MISSING DIGIT trick!,Birthday Trick,The Prime Number Trick,square tricks & etc
applicable to
Common Aptitude Test (CAT)
Bank Competitive Exam
UPSC Competitive Exams
SSC Competitive Exams
Defence Competitive Exams
L.I.C/ G. I.C Competitive Exams
Railway Competitive Exam
University Grants Commission (UGC)
Career Aptitude Test (IT Companies) and etc.
The presentation explains various Vedic math techniques that can be used for simplified manual calculations. It is a must learn mathematics technique for young students for better calculations.
Tips to prepare for Fundamentals of Quantitative Aptitude
Number Properties
LCM, HCF
Divisibility
Fractions & Decimals,
square
Square Roots
cyclicity
with shortcut tricks
Aptitude- Arithmetic - calendar concept and trick
applicable for all
Common Aptitude Test (CAT)
Bank Competitive Exam
UPSC Competitive Exams
SSC Competitive Exams
Defence Competitive Exams
L.I.C/ G. I.C Competitive Exams
Railway Competitive Exam
University Grants Commission (UGC)
Career Aptitude Test (IT Companies) and etc.
concept, formula and trick and all type of tricky question of clocks.Simple way to solve clock based problems in Aptitude Section
applicable to all
Common Aptitude Test (CAT)
Bank Competitive Exam
UPSC Competitive Exams
SSC Competitive Exams
Defence Competitive Exams
L.I.C/ G. I.C Competitive Exams
Railway Competitive Exam
University Grants Commission (UGC)
Career Aptitude Test (IT Companies) and etc.
The Placement Season for the 2015 Batch has begun with the IT majors like Infosys, Cognizant, Wipro, Accenture and TCS started visiting the campuses. We haven’t seen any change in the Recruitment process of Cognizant, Wipro, Accenture and TCS compared to last year. But Infosys has changed their Aptitude Test Pattern and we shall look into the details of it and our recommended strategy.
Mathematical Shortcuts for Aptitude-Percentage,Simple Interest,COMPOUND INTEREST,Ratio / Proportion,Partnership,Time & Distance,Rule of Alligation,LCM,HCF,LAST DIGIT OF ANY POWER,LARGEST POWER OF A NUMBER IN N!,Calendar,Boats,Pipes & Cistern
quantitative aptitude, maths
applicable to
Common Aptitude Test (CAT)
Bank Competitive Exam
UPSC Competitive Exams
SSC Competitive Exams
Defence Competitive Exams
L.I.C/ G. I.C Competitive Exams
Railway Competitive Exam
University Grants Commission (UGC)
Career Aptitude Test (IT Companies) and etc.
quantitative aptitude, maths
applicable to
Common Aptitude Test (CAT)
Bank Competitive Exam
UPSC Competitive Exams
SSC Competitive Exams
Defence Competitive Exams
L.I.C/ G. I.C Competitive Exams
Railway Competitive Exam
University Grants Commission (UGC)
Career Aptitude Test (IT Companies) and etc.
quantitative aptitude, maths
applicable to
Common Aptitude Test (CAT)
Bank Competitive Exam
UPSC Competitive Exams
SSC Competitive Exams
Defence Competitive Exams
L.I.C/ G. I.C Competitive Exams
Railway Competitive Exam
University Grants Commission (UGC)
Career Aptitude Test (IT Companies) and etc.
4. First, to get the last digit in the answer,
multiply the two numbers on the right.
Write the answer, as the rightmost digit in
the problem’s answer.
33. •Take the difference between 100
and the number being squared and
square.
100 – 96 = 4
4² = 16
34. •Place that number after the base
number and you have the answer.
96² = 9,216
35. If the number to be squared is
more than 100, add the
difference to the number.
36. Squaring numbers that ends in
5
Any number that ends in 5 is easy to
square to start with, you know that
5 x 5 = 25, so the answer will
automatically end in 25.
Ex. 35²
37. •Add 1 to the first digit, ignore the
rest at the number.
1
+ 3(5)
4
38. •Multiply the result to the first digit
of the original number. This result is
the first part of the answer.
4 x 3 = 12