Strategy To Improve Calculation Speed For IBPS RRB 2020 Exams

Learn the Strategy to improve calculation speed for IBPS RRB 2020 Exams.

One of the factor that is require to clear any exam especially IBPS RRB 2020 is the speed in calculating large numbers at ease. It is very important that you have a good hand at calculation otherwise it will be tough battle for you to fight. There are only two sections in IBPS RRB 2020 and thus you cannot afford to be good at just one. There will be sectional cut-off as well as overall cut off and you have to clear the both in order to stand in the league of selected students. In this space we will be telling you some of the must do that can help you to speed up your calculation speed.

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Strategy To Improve Calculation For IBPS RRB 2020 Exams

1.First thing first, learn the table. No battle can be won without getting your basic weapons ready. Learning table is your that basic weapon that can help you to increase your calculation speed.

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Multiplication Tables from 1 to 30 PDF

2. Next thing that can help you to speed up your calculation will be learning the squares and cubes upto 25 atleast. The more you will do and practice, the better you will be.

Number
x
Square
x2
Cube
x3
1 1 1
2 4 8
3 9 27
4 16 64
5 25 125
6 36 216
7 49 343
8 64 512
9 81 729
10 100 1000
11 121 1331
12 144 1728
13 169 2197
14 196 2744
15 225 3375
16 256 4096
17 289 4913
18 324 5832
19 361 6859
20 400 8000
21 441 9261
22 484 10648
23 529 12167
24 576 13824
25 625 15625
26 676 17576
27 729 19683
28 784 21952
29 841 24389
30 900 27000

3. Learn fractional values of some of the important fractions, we are giving you the complete table. Make sure you learn them properly as questions from them are asked in examination.

Fraction Percentage Fraction Percentage Fraction Percentage Fraction Percentage
1/2 50 % 1/11 9.09 % 1/20 5.00 % 5/8 62.5 %
1/3 33.33 % 1/12 8.33% 1/21 4.76 % 7/8 87.5 %
1/4 25 % 1/13 7.69 % 1/22 4.54 % 2/3 66.66 %
1/5 20 % 1/14 7.14 % 1/23 4.35 % 5/6 83.33 %
1/6 16.67 % 1/15 6.66 % 1/24 4.166 % 4/5 80 %
1/7 14.28 % 1/16 6.25 % 1/25 4.00 %
1/8 12.5 % 1/17 5.88 % 1/30 3.33 %
1/9 11.11 % 1/18 5.55 % 3/8 37.5 %
1/10 10 % 1/19 5.26 % 2/5 40 %

4. Learn the Divisibility rules as it will be beneficial for you to do the calculation in no time.

Numbers If a Number
Divisible by 2 End with 0,2,4,6,8 are divisible by 2
Divisible by 3 Sum of its digits  is divisible by 3
Divisible by 4 Last two digit divisible by 4
Divisible by 5 Ends with 0 or 5
Divisible by 6 Divides by Both 2 & 3
Divisible by 8 Last 3 digit divide by 8
Divisible by 10 End with 0
Divisible by 11 [Sum of its digit in  odd places-Sum of its digits in even places]= 0 or multiple of 11

5. Learn the different tricks that can really help you to fasten your calculation like Digital sum method that is explained below:

  • In this method, we get the digit-sum of a number by adding across the number. for eg, the digit-sum of 13022 is 1+3+0+2+2=8
  • The trick is to  always reduce the digit-sum to a single figure. for eg, the digit-sum of 5264 is 5+2+6+4=17 and further reduce it to single figure i.e 17 is reduced to a single figure i.e. digit sum of 1+7=8.
  • What is important to note here is the fact that in adding across a number we may drop out 9, 9 doesn’t count on digit sum. eg1: digit sum of 9901is (0+1)= 1 or eg2: digit sum of 279 is (2+7+9)= 0 here digit sum of (2,7) makes 9.
  • Even for decimals, the process remains the same but we don’t pay attention to the decimal points. The digit sum of 6.256 is (6+2+5+6)=19, neglect 9= digit sum is 1
  • We can apply this trick  for addition, subtraction, multiplication, division. You can straight away eliminate the options based on this method.

6. There are lots of tips and tricks to simplify the Multiplication process, learning the short tricks to find out the squares of any number. We are giving you the direct links of all these tricks, make sure you go through them once as it will be really helpful for you.

Make sure you do give these quizzes to test the clarity of the tricks mentioned above. We will keep updating some more useful tips and tricks here so make sure you keep visiting bankersadda!

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