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Class III - Maths: Additions
One Word Answer Questions:
Q) Add 5 + 3 = ?
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Q) Add 4 + 1 = ?
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Q) Add 3 + 7 = ?
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Q) Add 2 + 6 = ?
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Q) Add 1 + 8 = ?
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Short Answer Questions:
Q) Count the total number of spoons and write in number name
    
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Q) Count the total number of vessels
    
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Q) Simplify and write the total number of combinations for 5 are?
    
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Q) Add 1 + 5+ 3 =?
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Q) Add 2 +7 + 1 = ?
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Long Answer Questions:
Q) Write the number name of the digit 586
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Q) There are 6 spoons in the holder and 2 spoons on the table.Count the totral number of spoons all together?
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Q) Ravi has 3 apples.tina has 5 apples.Tom has 1 apple.Count the total number of apples?
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Q) There are 3 glasses full of water and 7 empty glasses.Count the total number of glasses?
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Q) Bheem has 5 Chocolates and his brother gave him 4 chocolates.Count the total number of chocolates?
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Q) Add the following 6 + 3 + 1 = ?,and write in number name
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Additions
Definition

The addition of two whole numbers is the total amount of those quantities combined.

For example:

ts_apple.JPG

In the above picture, there is a combination of three apples and two apples together, making a total of five apples. This observation is equivalent to the mathematical expression.

"3 + 2 = 5" i.e., "3 add 2 is equal to 5".

Addition on numbers

4+3=7.
ts_addition.jpg

3+1=4.
ts_addition1.png

The table given below provides information about the number of pupils who have dolls and cars. Find out how many pupils are have total toys.

Gita Rita Sita Latha Neeta Total
dolls 13 14 12 16 15 70
cars 14 12 16 14 12 68
Total

Gita has, 13 dolls and 14 cars .
I can break 13 into 10 + 3 and 14 into 10 + 4
Then it is easy.I add 10 + 10 and 3 + 4
So 13 + 14
= 10 + 3 + 10 + 4
= 20 + 3 + 4
= 20 + 7
= 27
See if you can do the same for Rita, Sita, Latha, Neetha .
Rita `rarr` 14 + 12
= 10 + 4 + 10 + 2
= 20 + 4 + 2
= 20 + 6
= 26
Sita `rarr` 12 + 16
= 10 + 2 + 10 + 6
= 20 + 2 + 6
= 20 + 8
= 28
Latha `rarr` 16 + 14
= 10 + 6 + 10 + 4
= 20 + 6 + 4
= 20 + 10
= 30
Neetha `rarr` 15 + 12
= 10 + 5 + 10 + 2
= 20 + 5 + 2
= 20 + 8
= 28
Total number of Toys are 138.

Examples
  1. 32 + 36 = 68
  2. 65 + 47 = 112
  3. 86 + 75 = 161
  4. 65 + 74 = 139
  5. 74 + 46 = 120
  6. 73 + 62 = 135
  7. 26 + 64 = 90
Adding 3 Numbers

  1. Adding zero
    Zero added to a number is equal to the number itself.
    Examples:
    6+0=6
    345+0=345
  2. Adding numbers that end in zeros
    Example: Add 200 and 300.
    2+3=5,and then writing zeros thereafter.So,200+300=500.

  3. Adding 10
    10 added to a number increases the value of the digit in the tens place by 1.
    Example: 55 +10=65; 487 +10=497, etc.
  4. Adding 100
    100 added to a number increases the value of the digit in the hundreds place.
    Example: 565 +100= 665 ; 445+100=545;etc.
  5. Adding 1000
    1000 added to a number increases the value of the digit in the thousands place.
    Example: 6520+1000=7520; 8423+1000=9423;etc.
Definition of Addends

Any of the numbers that are added together.

For example: In 8 + 3 = 11, the 8 and the 3 are addends.

ts_addition2.png

Carefully look at the table again.

The total number of boys in Ravindra Bharath school is 70 and the total number of girls is 68. What is total number of students in Ravindra Bharathi school? Let us add the number of boys and girls.?

+ H T O
7 0
6 8
1 3 8

Tens
10 10 10 10 10 10 10
10 10 10 10 10 10
ones
1 1 1 1 1 1 1 1

+ H T O Total
10 10 10 10 10 10 10
10 10 10 10 10 10 1 1 1 1 1 1 1 1
20 20 20 20 20 20 10 1 1 1 1 1 1 1 1 =138

How many students are there in ZPH school?
There are 132 boys and 122 girls in Thimmapur school. What is the total number of students in the school?Let us find the total number of students in the school.
Add 132 and 122.

+ H T O
1 3 2
1 2 2
2 5 4

Example:A factory produces 214 lights in the first week and 124 lights in the second week. How many fans did the factory produce in the two weeks?

+ H T O
2 1 4
1 2 4
3 3 8

How many bricks?
A kitchen is being constructed in Thimmapur school. 475 bricks are available.
The mason brings 220 more bricks and uses them to construct the kitchen.
A total of how many bricks are used to construct the kitchen?
Think! Is 475 + 220 more than 600 or less than 600?
Number of bricks in the school             4 7 5
Number of bricks the mason brings    +2 2 0
                                                      ------------
Total number of bricks                       6 9 5
                                                      ------------
Example: 1 John and Gopi are playing with pebbles. John has 163 pebbles. He wins 125 more pebbles. How many pebbles does John have now?
John's pebbles initially                    1 6 3
Pebbles won by John                    +1 2 5
                                                 ------------
John's pebbles bricks                    2 8 8
                                                 ------------

Order In Addition

How many chocolates do you need?
It was decided to distribute a chocolate to each person on Independence Day in play school. There were 267 students and 12 teachers. Two girls Latha and Neha calculated the number of chocolates required for distribution, as given below-
Latha has
     2 6 7
 + 1 2
   -----------
    3 8 7
   -----------
Neha has
     2 6 7
    + 1 2
    -----------
     2 7 9
    -----------
Who added correctly? Why?

   Neha added correctly.
 2 hundreds + 6 tens + 7 ones
              1 tens + 2 Ones
------------------------------		
 2 hundreds + 7 tens + 9 ones
-------------------------------
From the above solution it is clearly stated that Neha added in the correct order of addends i.e. ones place value in the ones place and tens place value in the tens place. 

Excercise

1 A teacher keeps a note of the number of story books and story cards read by boys and girls in the school. This is what she found:

Students Story books Story cards
Girls 145 254
Boys 66 120

2Vijaya's age is 22 years.Laxmi's age is 25 years more than Vijaya's age.Whats is Laxmi's age?


3Add the following?
(i)645+265?
(ii)238+76?
(iii)24+356?
(iv)234+890?

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