__Important Shortcuts and Mind Tricks for Number Series Questions in Aptitude Section – Download in PDF:__Dear Readers, Aptitude Shortcut methods and tricks for Number Series Questions were given below. Candidates those who are preparing for Bank PO/Clerk and all other competitive Exams can also download this in PDF.

__ Important Points to remember__:

**i). If numbers are in**.

__ascending order__in the number seriesNumbers may be

__added or multiplied__by certain numbers from the first number.__SET – I:__

**Step 1**: Check whether it is ascending , descending or mixed order.

**Step 2**: It is in ascending order. So add or multiply by certain numbers from the first number.

**Step 3**: The difference between first number and second, and difference between second and third and so on., are in increasing order of +4 and +3

**Step 4**: Hence the answer for above series is 37.

**Step 1**: Check whether it is ascending , descending or mixed order.

**Step 2**: It is in ascending order. So add or multiply by certain numbers from the first number.

**Step 3**: By adding first number and second, and second and third and so on., it is not in the sequence of increasing order. Try multiplication

**Step 4**: Take 1 and 3, let’s start multiplying 1*3=3, by seeing this we get to know, by multiplying 3*4 it gives 12, and 12*5=60.

**Step 4**: Hence the answer for above series is 360.

**ii). If numbers are in**

__descending order__in the number series,Numbers may be

__subtracted or divided__by certain numbers from the first number.

__SET – II :__**Step 1**: Find whether the given number is in

__descending__order.

**Step 2**: It is in

__descending__order . So subtract or divide by certain numbers from the first number.

**Step 3**: The difference between first number and second, and difference between second and third and so on, are in order of -16,-8,-4,-2

**Step 4**: Hence the answer for above series is 3.

**Step 1**: Check whether it is ascending , descending or mixed order.

**Step 2**: It is in descending order. So subtract or divide by certain numbers from the first number.

**Step 3**: By dividing first number by 6 it gives 120.

Divide 120/ 5 =24, 24/4=6, 6/3=2, 2/2=1 .It is in decreasing order.

**Step 4**: Hence the answer for above series is 1.

**iii). If numbers are in mixing order (increasing and decreasing) in the number series.**

**Numbers may be in addition, subtraction, multiplication and division in the alternate numbers.**

**Step 1**: Check whether it is ascending , descending or mixed order.

**Step 2**: It is in mixing order. So it may be in addition, subtraction, division and multiplication, squares and cubes.

**Step 3**: In above series it is mixing of square, addition and subtraction.

(14)2= 196+4= 200

(13)2=169. By adding 4 it gives 173. Try subtraction.

169-4=165

Here we found it is in order of squaring a number, adding by 4 and subtracting by 4.

**Step 4**: Hence the answer for above series is 77.

**Step 1**: Check whether it is ascending , descending or mixed order.

**Step 2**: It is in ascending order. So add or multiply by certain numbers from the first number.

**Step 3**: In above series lets add first number with 3 i.e.,14+3= 17

But with second number we can’t able to add +3 and so on.

Let’s try adding first number and second number i.e. 14+17=31

Second and third, i.e. 17+31 =48 and so on

This series is in the form of miscellaneous

**Step 4**: Hence the answer for above series is 79

__For Important Fast Math Tricks-Click Below:__

**Important Shortcuts for Multiplication****Important Shortcuts for Division****Important Shortcuts for Subtraction****Important Shortcuts for Multiplication of 2 digits number****Important Shortcuts for Multiplication of 2 digits and 3 digits numbers**

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