Shortcut to multiply any 3 digit number by 111

Shortcut to multiply any 3 digit number by 111
Shortcut to multiply any 3 digit number by 111 in seconds
In my previous post, we learnt how the multiply any 2 digit number by 111.Today we shall see the shortcut way to multiply any 3 digit number by 111.

 

Lets go through the steps below
Step 1:Write down the unit place digit of the 3 digit number.

Step 2:Add unit place digit and tenth place digit and write down the number to the left of the unit place digit number.

Step 3:Add unit place digit, tenth place digit and hundreth place digit and write down the number.

Step 4:Add tenth place digit and hundredth place digit and write down the number.

Step 5:Write down the hundredth place digit.


Now, we shall consider some examples to understand better.

Example 1:123 x 111=?
Step 1:Unit place digit is 3 which we write it down as it is.
             _ _ _ _ 3

Step 2:Adding unit place digit and tenth place digit 
            We get 3 + 2=5
             _ _ _ 53
  
Step 3:Adding all the three digits 
            We get 3 + 2 + 1=6
              _ _ 6 53

Step 4:Adding tenth and hundredth place digit 
            We get 2 + 1=3
             _ 3 6 53

Step 5:Hundredth place digit  is 1 which we shall write it down.
            We get 13653

Ans 123 x 111=13653

Example 2:234 x 111=?
Step 1:Unit place digit is 4 which we write it down as it is.
             _ _ _ _ 4

Step 2:Adding unit place digit and tenth place digit 
            We get 4 + 3=7
             _ _ _ 73
  
Step 3:Adding all the three digits 
            We get 4 + 3 + 2=9
              _ _ 9 73

Step 4:Adding tenth and hundredth place digit 
            We get 3 + 2=5
              _ 5 9 73

Step 5:Hundredth place digit is 2 which we shall write it down.
            We get 25974

Ans: 234 x 111=25974

Basic MS Excel 2007 tutorial Intro

Basic MS Excel 2007 tutorial Intro
Introduction to MS Excel 2007

When you click on MS Excel application from your program list the first thing you notice is that a blank sheet.In MSExcel it is commonly called a workbook.Every workbook contains 3 worksheets namely Sheet1,Sheet2,Sheet3 by default.

You can insert or delete or rename or move the sheets which we shall see later.


 

Now lets take an excel tour to get a sneak peak into the basics of Microsoft Excel.


Here is a sample workbook

(1)Microsoft office button:This is a round button that you can see on the uppermost left corner of the workbook.You can use this to open a new workbook or save.We will be exploring the options under this head in detail in the next lesson.
 
(2)Quick Acess Toolbar:There is a small bar right next to the Microsoft Office button.You can customise and add frequently used commands to the quick access tool bar so that you access any command at a click.
 
(3)Title bar:Title bar appears at the top of any worksheet.
By default the 1st sheet you open is named as Book1 which you can rename by saving it with a different name.

(4)Minimise:There is minus(-)like symbol to the topmost right corner of the worksheet which you can use to minimise the window
 
(5)Maximise/Restore down:Next to the minimise button is a box shaped button which you can use to maximise or restore the window.
 
(6)Close:Next to Maximise button is Cross(x)sign which you can use to close the window.
 
(7)Ribbon:The whole area to the bottom of the title bar is the Ribbon.
 
(8)Tabs:Ribbon is divided into different tabs based on the functions they perform.We have the Home tab,Insert tab,Pagelayout tab,Formulas tab,Data tab, Review tab, View tab.

(9)Groups;All similar type of commands are grouped together into a group.
Ex:Alignment and Number are groups.

(10)Name box:To the left corner below the Ribbon is the name box which shows the active cell/cell reference.

(11)Formula bar:The white area next to fx is the formula bar which you can use to insert formulas.

(12)Vertical scroll bar:To right of the worksheet is the vertical scroll bar which you can use to scroll to see more data on the vertical side.  

(13)Horizontal scroll bar:To the bottom right of the worksheet is the horizontalscroll bar which you can use to scroll to see more data on the horizontal side. 

(14)Normal View:Below the horizontal scroll bar there is an icon called normal view which you can use to view the worksheet in the normal mode.

(15)Page Layout:Below the horizontal scroll bar there is another icon in the middle called Page Layout which allows you to modify the page layout.

(16)Print Preview:Below the horizontal scroll bar next to Page layout is the Print Preview button which shows you how the worksheet looks when you print it.

Shortcut to multiply any number from 90-99 by 5

Shortcut to multiply any number from 90-99 by 5
Shortcut to multiply any number from 90-99 by 5 in seconds

In the previous post we learnt how to multiply any number from 80 to 89 by 5 in seconds.Today we are going to learn another cool trick to multiply any number from 90 to 99 by 5 in seconds.

Let us see the steps 

 

Step 1: Assume the base as 90

Step 2: Multiply the base by 5

Step 3:Multiply the unit place digit by 5

Step 4:Add the results obtained in step 2 and step 3 to get 
            final answer.


 
Now lets consider a few examples to understand better

Example 1:93 x 5 = ?

Step 1:We assume the base as 90.

Step 2:Multiplying the base by 5 
          We get 90 x 5 = 450

Step 3:Multiplying the unit place digit by 5
          We get 3 x 5 =15

Step 4:Adding results obtained in step 2 and step 3 
           We get 450 + 15 = 465

Ans 93 x 5 =465


Example 2:98 x 5 = ?

Step 1:We assume the base as 90.

Step 2:Multiplying the base by 5 
          We get 90 x 5 = 450

Step 3:Multiplying the unit place digit by 5
          We get 8 x 5 = 40

Step 4:Adding results obtained in step 2 and step 3 
           We get 450 + 40 = 490

Ans 98 x 5 =490

Shortcut to multiply any number from 80-89 by 5

Shortcut to multiply any number from 80-89 by 5
Shortcut to multiply any number from 80 to 89 by 5 in seconds

In the previous post we learnt how to multiply any number from 70 to 79 by 5 in seconds.Today we are going to learn another cool trick to multiply any number from 80 to 89 by 5 in seconds.

Let us see the steps 

Step 1: Assume the base as 80

Step 2: Multiply the base by 5

Step 3:Multiply the unit place digit by 5

Step 4:Add the results obtained in step 2 and step 3 to get 
            final answer.


 
Now lets consider a few examples to understand better

Example 1:82 x 5 = ?

Step 1:We assume the base as 80.

Step 2:Multiplying the base by 5 
          We get 80 x 5 = 400

Step 3:Multiplying the unit place digit by 5
          We get 2 x 5 =10

Step 4:Adding results obtained in step 2 and step 3 
           We get 400 + 10 = 410

Ans 82 x 5 =410


Example 2:87 x 5 = ?

Step 1:We assume the base as 80.

Step 2:Multiplying the base by 5 
          We get 80 x 5 = 400

Step 3:Multiplying the unit place digit by 5
          We get 7 x 5 = 35

Step 4:Adding results obtained in step 2 and step 3 
           We get 400 + 35 = 435

Ans 87 x 5 =435

Shortcut to multiply any number from 70-79 by 5

Shortcut to multiply any number from 70-79 by 5
Shortcut to multiply any number from 70 to 79 by 5 in seconds

In the previous post we learnt how to multiply any number from 60 to 69 by 5 in seconds.Today we are going to learn another amazing trick to multiply any number from 70 to 79 by 5 in seconds.

Let us see the steps 

 

Step 1: Assume the base as 70

Step 2: Multiply the base by 5

Step 3:Multiply the unit place digit by 5

Step 4:Add the results obtained in step 2 and step 3 to get 
            final answer.


 
Now lets consider a few examples to understand better

Example 1:73 x 5 = ?

Step 1:We assume the base as 70.

Step 2:Multiplying the base by 5 
          We get 70 x 5 = 350

Step 3:Multiplying the unit place digit by 5
          We get 3 x 5 =15

Step 4:Adding results obtained in step 2 and step 3 
           We get 350 + 15 = 365

Ans 73 x 5 =365


Example 2:79 x 5 = ?

Step 1:We assume the base as 70.

Step 2:Multiplying the base by 5 
          We get 70 x 5 = 350

Step 3:Multiplying the unit place digit by 5
          We get 9 x 5 = 45

Step 4:Adding results obtained in step 2 and step 3 
           We get 350 + 45 = 395

Ans 79 x 5 =395