Lesson20
Lesson20
Miscellaneous Multiplication
Here I tell you some miscellaneous methods of multiplication from 18 to 101
These methods are based on presence of mind. As you know multiplication/division of 2, 5 ,9,10,11, 25,50, is very
easy in comparison
Lesson18
Lesson18
Percentage
You can find percentage very fast, no calculations, write only required answer directly
10 % : Just divide the number by 10
12.5%: Just divide the number by 8
33 1% : Just divide the number by 3
3
Find 10% of 229 = 229/10 =22.
Lesson19
Lesson19
Under Root
Now learn a very easy method -how to find under root of any number
Let see this example; Find the under root of 39
Here we know that perfect square near to 39 is 36 and under root of 36 is 6
So under root of 39 is more than 6
Lesson13
Lesson13
Division by 9
Division by 9 is also very easy and you can do it very fast mentally
24 / 9 = 2 remainder 6
The first figure of 23 is 2, and this is the answer.
The remainder is just 2 and 3 added up!
42 / 9 = 4 remainder 6
The first figur
Lesson3
Lesson3
Multiplication by 5
It's often more convenient instead of multiplying by 5 to multiply first by 10 and then divide by 2. For example, 237x5=2370/2=1185
Same way you can also multiply by 50
Multiplication by 4
Replace either with a repeated
Lesson6
Lesson6
Multiplying Close Numbers
Here we learn how to calculate close numbers multiplication like 96x92, 43x49 ,88x98
Multiply 88 by 98.
Both 88 and 98 are close to 100.
88 is 12 below 100 and 98 is 2 below 100.
As before the 86 comes from
(or 98
Lesson9
Lesson9
TO CALCULATE THE PRODUCT OF NOs. Ending with 5
Here we discuss the multiplication of two numbers ending with 5 ie 25x25 ,25x45 35 x75
we cover three types of problems under this heading
1. 25x25 both nos are same no difference ie differenc
Lesson11
Lesson11
Can it Divide?
How can you quickly know if one number will divide evenly into another number, leaving no remainder? For example, will 3
divide evenly into 2,169,252? Well, I wouldn't have brought the subject up if I didn't know some curi
Lesson1
Lesson1
These lessons are based on Vedic Maths" principles and other maths tricks.These principles are general in nature
and can be applied in many ways and very very useful in commercial arthematics. I hope all of you like these
lessons and make
Lesson10
Lesson10
Squares
Finding square of any number is very very easy and you can calculate it very fast But before
going to concept ,you should do some home work . You are well conversant in squaring of
1 to 9
1x1
2x2
3x3
4x4
5x5
6x6
7x7
8x8
9x9
=1
=4
Lesson8
Lesson8
Let us try a long multiplication 235465 x233297 =?
This is the conventional method and everybody know this method so I am skipping the explanation.
2 3 5 4 6 5
x_ 2_ 3_ 3_ 2_ 9_ 7_
1 6 4 8 2 5 5
21 1 9 1 8 5 x
47 0 9 3 0 x x
706 3 9 5 x x
Lesson5
Lesson5
MULTIPLICATION OF 9
Step1 Prifix 0 before multiplicand
Step2 Take last digit, subtract it from 10 and write it at the extreme right
Step3 Take second last digit add one and subtract it from last digit write before step 1 figure
Step4 Now m
Lesson4
Lesson4
MULTIPLICATION OF 12 TO 19
MULTIPLICATION BY 12:
The method is exactly the same as in the case of 11 except that you double each number before adding the
right neighbour.
Step1 Prifix 0 before multiplicand
step2: Multiply last digit by 2 a
Lesson7
Lesson7
VERTICALLY AND CROSSWISE MULTIPLICATION
Consider the conventional multiplication of two 2 digit numbers 12 and 23
shown below:
12
X 23
36
24x
276
This is normally called long multiplication but
actually the answer can be written straight d
New Page 1
Lesson2
Multiplying a number by 11
To multiply any number by 11 we just put
the total of the two figures between the 2 figures.
32X11
Here first we write 2 of 32 extreme right ,now add up 3+2 =5 ,put 5 before 2 and write 3 extreme left .Require
Lesson12
Lesson12
Division by 11
Here we learn division by 11 It is very easy and you can do it mentally very fast
First we check particular number is divisible by 11 or not We already discuss this method in
lesson 11 .There are only two possibilities eit
BANK P.O. SPECIAL
Descriptive Questions
Q. 1. If we want to have real
democracy, our effort should be to have
100 per cent literacy. Give three
arguments in favour and three
arguments against this statement.
Arguments in Favour of the View.
1. Democracy r
VOCABULARY
Improve Your Word Power
1. ambidexterity: (a)
using both hands equally
well (b) using muscle and
money power well (c)
combining physical mental
power well (d) depriving
others of their rights.
2. bathetic: (a) artificial
(b) scarce (c) cruel (d
BANK P.O. SPECIAL
Descriptive Questions
Promotion of tourism
Q. Suggest three effective
measures to promote tourism,
especially by foreign tourists.
Elucidate or explain how the steps
suggested by you would motivate
foreign tourists to include India in
th
MANAGEMENT
Business G.K.
1. Ms Shobhana Bhartia was awarded the Best Business
Woman of the Year in recognition of her commendable
achievements. She is the Vice Chairperson of:
(a) The Times of India
(b) The Hindustan Times
(c) The Indian Express
(d) The A
PARAGRAPH-WRITING
Model Paragraphs
Laws are not masters but
servants, and he rules them
who obeys them.
H.W. Beecher
Laws are used to ensure political
stability, economic progress and
material prosperity for all. In an ideal
State, no one is supposed to b
BANK P.O. SPECIAL
Descriptive Questions
Making rail journey safe and
satisfying
Q. Suggest three effective
measures to make rail journey in India
more safe and enjoyable. Elucidate
how the measures suggested by you
would be effective or result-oriented.
A
OBJECTIVE-TYPE QUESTIONS
General Awareness
Solved paper of Staff Selection Commission Section Officers Exam
1. The main causes of International Trade is:
(a) equal cost difference
(b) absolute cost difference
(c) comparative cost difference
(d) equal and
MANAGEMENT
BUSINESS G.K.
1. Name the player in multimedia
education, with 200 centres in six
countries, which now offers interest-free
education loans to its students all over
the country, in alliance with HDFC Bank,
at zero per cent rate of interest.
a)
OBJECTIVE-TYPE QUESTIONS
English Language
Qs. 1-5. Read each sentence to find
out whether there is any error in it.
The error, if any, will be in one part of
the sentence. The number of that part
is the answer. If there is no error, the
answer is 5. (Igno
OBJECTIVE-TYPE QUESTIONS
General Awareness
Staff Selection Commission Combined Preliminary (Graduate Level) Exam
held on the 27th February, 2000
1. Which two iron and steel plants have been setup in
collaboration with former Soviet Union?
(a) Jamshedpur a