The method of discovering the sum of various values is known as addition.

● We use aggregation once we add two or extra portions.

● Signal of addition +

● Add the numbers in any order and we get the identical sum. For instance

5 + 6 + 7 = 18

6 + 7 + 5 = 18

7 + 5 + 6 = 18

● Zero added to any quantity provides the identical quantity. For instance

8 + 0 = 8

0 + 10 = 10

32 + 0 = 32

0 + 88 = 88

● Add 1 to a quantity and we get the subsequent quantity. For instance

11 + 1 = 12

40 + 1 = 41

1 + 76 = 77

1 + 99 = 100

**So as to add:**

5 + 0 =

0 + 25 =

15 + 1 =

68 + 1 =

22 + 8 + 5 =

5 + 8 + 22 =

8 + 5 + 22 =

5 + 4 + 3 + 2 =

6 + 7 + 5 + 0 =

9 + 1 + 4 + 7 =

**Increase and add:**

(I)

30 + 7 30 + 20 50 |
+ + + 59 |
20 + 2 7 + 2 9 |

(ii)

** 245 + 652**

200 + 40 + 5 + 600 + 50 + 2

200 + 600 + 40+ 50 + 5 + 2

800 + 90 + 7

897

Tell us some details about addition that can assist us study so as to add 4-digit and 5-digit numbers.

**one.** The addition of small numbers may be completed horizontally.

Instance: 6 + 2 + 3 = 11

**2.** Massive numbers are added to vertical columns (written on the backside of the place worth desk).

Instance:

Th HTO

7 2 5 8

1 3 6 2

__ + 1 4 2 6__

__ 1 0 0 4 6__

**3.** A zero added to a quantity doesn’t change the place worth of the quantity.

HTO

3 2 5

__ + 0__

__ 3 2 5__

**4.** The added numbers or values are known as the addition and the reply is known as the sum.

**5.** Including 1 to a quantity provides the quantity’s successor as a complete.

**6.** To discover a lacking suffix in a summation, the given sum or the sum of all given sums is subtracted from the given complete.

Research:

**7.** Altering the order of additives within the sum complete doesn’t change the reply.

Instance: (i) 45 + 26 = 26 + 45 = 71

(ii) 3 + 2 + 6 = 6 + 2 + 3 = 11

**8.** When including greater than two numbers, we are able to group any two numbers first. It does not change the entire.

Instance: 7 + (9 + 3) = 7 + 12 = 19

or

(7 + 3) + 9 = 10 + 9 = 19

This truth helps us group any two aggregations to make the addition simpler.

Instance:

= (95 + 5) + 23

= 100 + 23

= 123

Let’s shortly overview what we realized about including 3-digit numbers within the earlier lesson.

So as to add 2-digit numbers, the numbers are written one after the opposite. The tens and ones digits that ought to seem are under the opposite.

**Questions and Solutions in regards to the third Grade Addition Case:**

**1. Clear up the sums under and match them with the proper reply.**

A. 20 + 5 B. 13 + 8 C. 17+7 D. 12+1 to. 14+6 F. 9 + 9 |
1. 20 2. 18 3. 21 4. 24 5. 13 6.25 |

**Reply:**

**one.** A. → 6

B. → 3

C. → 4

D. → 5

to. → 1

F. → 2

**2. Add the variety of the center circle with the variety of the internal circle. Write the sum within the outer circle:**

**(I)**

**(ii)**

**Reply:**

**2. (me)**

**(ii)**

**3. Fill within the lacking numbers:**

**Reply:**

**3.**

**4. Add the next numbers:**

(i) 34 + 3 = _____

(ii) 53 + 12 = _____

(iii) 17 + 8 = _____

(iv) 46 + 18 = _____

(v) 60 + 11 = _____

(vi) 82 + 6 = _____

(vii) 72 + 22 = _____

(viii) 21 + 5 = _____

**Reply:**

**4.** (me) 37

(ii) 65

(iii) 25

(iv) 64

(v) 671

(vi) 88

(vii) 94

(viii) 26

**5. Sort ‘T’ for true and ‘F’ for false:**

(i) The sum is at all times higher than the numbers added.

(ii) It modifications once we change the order of the quantity whereas including the sum.

(iii) The sum of zero and any quantity is the quantity earlier than it.

(iv) While you add 1 to a quantity, the reply is the quantity after it.

**Reply:**

**5. **(IT

(ii) F

(iii) F

(iv) T

**third Grade Arithmetic Classes**

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