Additions Shortcuts

Addition of numbers close to multiples of ten (e.g. 19, 29, 38, 59 etc.)

This technique is useful for Mental calculations


116 + 39 (Here we can write this 39 as 40-1)

= 116 + (40 - 1)

= 116 + 40 - 1

= 156 - 1 (Instead of adding 39 to 116, we just add 40 to 116 (because we can do this without using pen and paper) and later we subtract one from it)

= 155

Try this.. This is very useful tip while doing calculations.


Now lets try another example. 

116 + 97

= 116 + (100 - 3)

= 116 + 100 - 3  (Here, instead of adding 97 to 116, we are just adding a 100 to 116 and then subtracting 3 from it :)

= 216 - 3

= 213

Addition of decimals
12.5 + 6.25
= (12 + 0.5) + (6 + 0.25) 
= 12 + 6 + 0.5 + 0.25 (Here we just added the rounded numbers first and later we added the decimal numbers :)
= 18 + 0.5 + 0.25
= 18.75

00:08 - By Unknown 0

 Cubes

Here are the Cubes of 1 to 15 numbers. By heart them.....




1 X 1 X 1 is : 1
2 X 2 X 2 is : 8
3 X 3 X 3 is : 27
4 X 4 X 4 is : 64
5 X 5 X 5 is : 125


6 X 6 X 6 is : 216
7 X 7 X 7 is : 343
8 X 8 X 8 is : 512

9 X 9 X 9 is : 729
10 X 10 X 10 is : 1000


11 X 11 X 11 is : 1331
12 X 12 X 12 is : 1728
13 X 13 X 13 is : 2197
14 X 14 X 14 is : 2744
15 X 15 X 15 is : 3375

00:06 - By Unknown 0

 Squares

Here are the Squares of 1 to 30 numbers. Byheart them....




1 x 1 = 1
2 x 2 = 4
3 x 3 = 9
4 x 4 = 16
5 x 5 = 25



6 x 6 = 36
7 x 7 = 49
8 x 8 = 64
9 x 9 = 81
10 x 10 = 100


11 x 11 = 121
12 x 12 = 144
13 x 13 = 169
14 x 14 = 196
15 x 15 = 225


16 x 16 = 256
17 x 17 = 289
18 x 18 = 324
19 x 19 = 361
20 x 20 = 400


21 x 21 = 441
22 x 22 = 484
23 x 23 = 529
24 x 24 = 576
25 x 25 = 625


26 x 26 = 676
27 x 27 = 729
28 x 28 = 784
29 x 29 = 841
30 x 30 = 900

00:05 - By Unknown 0

 How to improve Calculation Speed

Calculation Speed plays a very very very important role in Bank Exams. Some people think that, people should have the natural ability to do calculations fast, of course that is true at some extent. But that doesn't mean the other ordinary people like you and me need not feel bad.

According to Aerodynamics Laws based on Weight and the Size of the wings, some species only do have the ability to fly. If we strictly apply their laws, a Bee cant fly. Because its weight is More and Wing's length is very less when compared to its Weight. But still it is flying very comfortably and enjoying the Honey in almost every flower. 

Sometimes Old rules and blind beliefs remain worthless. Forecasters' predictions become wrong. Only The Belief in You and Hard work will create wonders. Trust me, it is very easy to develop good calculation speed in a relatively short period of

time. All you need is Hardwork, Little Amount of time and Good Material to Prepare... You give us the first TWO, we will provide you with the Third one... 

30 x 30 : Just spend 30 minutes a day for 30 days. You will definitely find the difference in your calculation speed. Your practice involves basic Additions, Subtractions, Multiplications, Percentage Calculations, Comparing Fractions and Calculating Squares. 

How can this blog help me? We post some examples on calculations. Solutions for these
examples indicating the short-cuts that you need to learn and implement. Which will help you to solve problems mentally in less time .

How to use this blog? Before you start involving with our posts, make sure that you are thorough with the following (Mandatory) :

• Multiplication Tables (Up to 20 x 10)
• Squares (Up to 30)
• Cubes (Up to (15)
• Powers of 2 (Up to 12)
• Powers of 3 (Up to 6)
• Reciprocals of numbers (Up to 12)
• Complements of 100 
• (I mean, the difference between 100 and the given 2 digit number).

Some Useful Shortcuts of Basic Maths :

• Addition Shortcuts
• Subtraction Shortcuts
• Multiplication Shortcuts
• Division Shortcuts
• Decimals

What should I do for this : Nothing, just open this page daily when ever you free. You can find a post containing 20 questions on calculations (Additions, Subtractions, Multiplications etc) . Just try to solve them mentally in the recommended time. Just put away your Calculators, Pens, Pencils and Papers. 

While taking these tests, please follow the below instructions.

• Take One test every day.
• Check the starting time and keep in mind the time that has been allotted for the particular exercise.
• Don't use calculator.
• Write as little as possible on paper. You should try doing as much of the calculation as possible mentally.
• Some questions require precise calculations whereas some other questions require only approximate calculations. Please remember that the level of accuracy to which you should work out the calculations will depend on the answer choices given in the post itself. So, do not spend more time than is necessary on each question. 
• Stop the test as soon as the Prescribed time is Over.
• After you Complete each exercise, spend time working out the questions that you could not complete in the given time. Then, check for the correctness of your answers. Rework all the questions in the test to see whether the method that you adopted was the best/shortest.
• Check the answers to see whether you have approached the calculations correctly. Use the learning that you gain in one Exercise in working out the next Exercise.
• Even after you use up all the tests given in this Blog, you should continue similar calculation practice on a regular basis to ensure that your calculation speed does not drop.  

Have a look at some basic techniques which will help you to improve your speed of Mental Maths....

☞ Mental Maths (Additions)

☞ Mental Maths (Subtractions)

☞ Mental Maths (Comparison of Fractions)

Click Here to take our Daily Speed Improvement Test Series

Liked this Post??? Check more HERE ☞

00:04 - By Unknown 0

 Quantitative Aptitude Shortcut Tricks

• Speed Math Guide  (Calculation Speed Improvement Techniques)

• Beginner's Guide   (Shortcuts for Basic Maths  Problems)

• Competitive Exam Math Guide (Shortcuts for Competitive Exams’ Aptitude Topics )

• Data Interpretation Techniques

Shortcuts for Aptitude, Shortcuts Maths, Aptitude in Pdf

00:03 - By Unknown 0

 Important Topics for SBI PO Descriptive Paper - Essay on Corruption

Chanakya in ArthaSastra described about 22 forms of corruption. He also stated that, “As it’s impossible not to drink a drop of honey or poison on the tip of the tongue, it’s also impossible restrain a person in power from misusing it.”

Recent agitations led by Anna Hazare and his team against corruption in all forms attracted masses and gave birth to LokPal bill, which is in dormancy for the past 2 decades.

Points to be elaborated

• Corruption refers to any form of misuse of power by government authorities for the well being of a few individuals expecting some favor in return.
• Facts about scams in India: 2G spectrum scam – 1,76,000crore which is equal to amount needed to implement Right To Education (RTE) throughout the country.
• Coal gate scam, where Prime Minister himself is accused of misusing powers.
• Not only these many scams involving union ministers, chief ministers of states like Fodder scam of Bihar, Taj heritage corridor scam of UP etc. made people to lose confidence on the elected governments.

• Mechanism to check this : Prevention of corruption act

•  Establishment of CBI in 1963 on the recommendations of Santhanam Committee on Prevention of Corruption and CVC in 1964 to deal with cases of corruption.

• Right to Information Act passed in 2005 gave the citizens right to know, which provided transparency in governing.

• Lokayuktas established at state level to deal with corruption cases.

• Recent LoKPal bill that is intended to provide ombudsman system for redress of public grievances etc.

• Lacunae : Lack of political spirit to implement the laws

• People unaware of their rights and laws made for their purpose
• Illiteracy among Indian masses
• Increase in money and muscle power in elections made mockery of democracy

• Conclusion :  Saakshara Vipareetatve Rakshasa Bhavathi Druvam – SarvepalliRadhakrishnan

• There’s a chance for people with too much knowledge becoming monsters.
• It can be controlled only by vibrant civil society and educated masses.

10:54 - By Unknown 0

 Important Topics for SBI PO Descriptive Paper - Set 1

Role of Youth in Nation Building

If the youth of the nation decide to take up the task to nation building for three years. Give three possible consequences if such a thing happens

Youth is the future builder of the nation. They should be well equipped morally to discharge their duty to their motherland. If the youth of India decide to take up the nation building for three years, the following consequences will be there.

1. Youth can undergo any type of sacrifice. They have the vigor vitality and stamina to face the greatest hardship. They can fight for national integration. They can improve the hygienic
   
   conditions in villages by adult education.
2. Youth are generally idealistic in nature. They would fight against the false politicians. They expose the problems of youth and they demand the constitutional right to work, and try to eradicate poverty and unemployment in the country.
3. When youth want to decide to take part three years in the main stream of the people. They know the hard ships of the villagers. They would undertake vocational and technical education to the villagers. They provocateur the people to take part in modern agriculture.

There are the main points friends. You can add some more stuff to make it more readable. You can use those standard facebook quotes like "Youth are not useless, they are used less" etc to bring more weight to your essay. But the point you should keep in mind is, Quality is important than quantity. So don't try to fill the paper with useless stuff. All the best. 

Read more tips and tricks of SBI PO Descriptive paper here

10:53 - By Unknown 0