# Current Affairs 1st Class

#### Introduction

Introduction    Comparison enables us to identity what is greater or smaller between two objects and what is greatest and smallest among more than two objects. For example, if we compare&, it is clear thatis bigger number but if we compare & then is the smallest andis the biggest number. Whilecomes between&therefore, it is greater or bigger than but smaller or less than.         Comparison of Numbers Let us see the given below examples:         It means thatis greater thanand '>'is the sign of 'greater than' or bigger than 'or more than'  is read as: (a) is greater than (b) is bigger than (c) is more than is also written asand read asis less than Therefore, it is clear that the mouth of the sign '>' is open to the side of the greater or bigger number.       Howis a greater number betweenand 3? For that we apply vertical line trick:     When countedis more than Hence Take another example:       Which one is bigger betweenand? Clearlyis more than or         and or It means the numberhas two digits and the numberhasdigit. Therefore,is greater than Take another example:       If more...

#### Subtraction of Images

Subtraction of Images     It means taking out picture or pictures from group of pictures and finding the remaining as the result of the subtraction.     Take another example:         Here, we count the flowers given before the sign of minus and after the sign of minus. We subtract it through the normal method of subtraction.             (a)                                            (b) (c)                              (d)     Answer: (c)   Explanation           Subtraction in Column   Subtraction in column is done by subtracting the numbers in column. See the given below examples:
 27 19 39 -17 24 -12 19 -8 08 22 12 11
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#### Subtraction of Figures

Subtraction of Figures     Numbers etc Figures = 2 rupees, 3 books, 1 kg, 6 hours, etc. Now, how to subtract figures? In fact, we subtract figures with simple method of subtraction we have learned so far.         hours -hours =hours   Trick: Take another example:   Trick: bananas -bananas -banana 8 Bananas -(2 Bananas + 1 Bananas)          Zacob subtracts 4 rupees out of 8 rupees. Find the result. (a) 5 rupees                                        (b) 3 rupees (c) 2 rupees                                        (d) 4 rupees   Answer: (d)   Explanation           7 kg + 1 kg - 3 kg = (a) 2kg                                                  (b) 3kg (c) 5kg                                                   (d) 6kg     Answer: (c) Explanation

#### Subtraction of Three Numbers

Subtraction of Three Numbers   Let's see the given below example:       Here, we have to subtract two numbersandbecause both numbers have '_' sign. Now, Step 1:   Add the numbers with '_' sign. Step 2:   Do subtraction as subtraction of two numbers. Thus, Take another example:       Here, Step 1:   Add numbers with ' + ' sign Step 2: Do the subtraction as subtraction of two numbers. Thus, Therefore, above given two examples makes the concept of subtraction of three numbers clear.             Jack has 6 Chocolates, he eats 2 chocolates in the morning and again 2 in the evening, how many chocolates he has now? (a) 3                                                       (b) 1 (c) 5                                                       (d) 2   Answer: (d) Explanation           7 - 3 + 5 = ? (a) 9 (b) 6 (c) 5                   (d) 8     Answer: (a) Explanation         Subtraction of Figures Numbers etc Figures = 2 rupees, 3 books, 1 kg, 6 hours, etc. Now, how to subtract figures? In fact, we subtract figures with simple method of subtraction we have learned so far.         hours -hours =hours   Trick:       Take another example:       Trick: bananas -bananas -banana 8 Bananas -(2 Bananas + 1 Bananas)            Zacob subtracts 4 rupees out of 8 rupees. Find the result. (a) 5 rupees                                        (b) 3 rupees (c) 2 rupees                                        (d) 4 rupees   Answer: (d)   Explanation        7 kg + 1 kg - 3 kg = (a) 2kg                                                  (b) 3kg (c) 5kg                                                   (d) 6kg     Answer: (c) Explanation   more...

#### Introduction

Introduction     Subtraction means taking out something from some longer unit and in this process finding the outcome as left over. Let's understand this through an example: There are three eggs in the box given below:     From this box Steve eats one egg then how many eggs are left? Steve eats one egg then one egg will disappear from the box as shown below:     Now two eggs are seen in the box. Therefore, this means two eggs are left over and the outcome of this subtraction process is 2. Let's understand it another way: Total eggs in the box = 3 = egg eaten by Steve And 2 = outcome or left over Here, '_' is the sign of subtraction and it is read as 'minus', and = is the sign of 'is equal to' or 'is same as'. Thus, It is read as 'three minus one is equal to two' or 'three minus one is same as two'.       Subtraction of two Numbers   It is the process of taking away smaller number from the greater one. TRICK: Here, it is clear that if we have to subtract then we cut three vertical lines from.It means number of vertical lines to be cut is equal for both greater and smaller numbers and number of vertical lines to be cut for each greater and smaller number is equal to the number to be subtracted. Similarly, ifhas to be subtracted then number of vertical lines to be cut from greater number isand from smaller number is alsoAnd ifhas to be subtracted thenvertical lines are cut. Take another example:            Serena has 5 apples and she eats 3 apples. How many apples she has now? (a) 1                                                       (b) 4 (c) 3                                                       (d) 2   Answer: (d) Explanation       (a) 3                                                       (b) 4 (c) 6                                                       (d) 5     Answer: (b) Explanation

Addition in Column     Addition in column is done by adding the numbers in column. See the given below
 7 +4 3 +8 4 +5 9 +8 11 11 9 17

35 +25   12 +15   17 +15
60   27 more...

Addition of Images     It does mean grouping of two or more pictures together.   pictures +picture =pictures.   Here, we count all the umbrellas together and find that they are 8 in total.     umbrellas +umbrellas =umbrellas.                Add the balloons given below and choose the correct option. (a)                                      (b) (c)                            (d)   Answer: (c) Explanation                      It becomes a group ofBalloons.         (a)                                    (b) (c)                               (d)     Answer: (c) Explanation

Addition of Figures        Figure   Let's consider about 2, 4, 11, 10, etc. In fact these are simply numbers. But, when we say:  Mangoes   Kilogram  Letters  hours   Rupees Then the numbers represent a figure. Therefore, it is clear that when numbers come in form of representing something, then they become a figure. Now, we add figures with simple method of addition we have learned so far.       Trick: =   Take another example kg rice + kg pulse + kg sugar = ? Trick:            Smith adds rupees 5 and rupees 6. What is the result of this addition? (a) 11 rupees                                     (b) 10 rupees (c) 12 rupees                                      (d) 14 rupees     Answer: (a)   Explanation          4 books + 3 books + 1 book = (a) 7 books                                          (b) 6 books (c) 5 books                                          (d) 8 books     Answer: (d)   Explanation

Addition of Two Numbers   It is the grouping of two numbers together and counting them as a single number. It is also written as: Trick: Put two vertical lines for 2 and three vertical lines for 3. After this count all the lines together and that line will be the final result of this addition. or   Now, Take another example   Now, we follow the trick:                Add the numbers inside the egg given below.   (a) 8                                                       (b) 6 (c) 12                                                     (d) 9     Answer: (d) Explanation       (a)         (b) (c)   (d)   Answer:(a) Explanation In addition, if two or more numbers are added in any order the result is the same. In another words 1st number + 2nd number = 2nd number + 1st number Therefore,  Further, we can check from the method: Again,      Therefore, Points to remember: number +number =number +number Option (B) is incorrect because = Option (C) is incorrect because = Option (D) is incorrect because

Concept of Addition   Addition means collection other than one unit together and counting them as single unit.   Let's understand this through an example:   There are three balls in box A                              There is one ball in another box B                                  Now, How many balls are there in both the boxes together? For this, we put the balls from both the boxes in a single box as shown below:         Therefore, the third box has three balls of box A and one ball of box B and they are together 4 balls. Let's understand it in another way:       or   Where '+' is sign of addition and it is read as 'plus' and '=' is the sign of 'is equal to' or 'is same as' Thus,  is read as: Three + One is equal to Four' or 'Three + One is same as Four'

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