# How to Find the sum of 2 numbers?

• Last Updated : 17 Aug, 2021

Numerical values are required to count and perform mathematical operations. The numerical value is represented by numbers which can also be represented alphabetically. For example, we can write a number like 22 or this can be represented using alphabets twenty-two. One more example is 3 and this can be represented as three.

There are many types of numbers. Odd and even, fraction and integer, Rational and irrational, natural and whole, and many more examples. Some of the operations are algebra, trigonometry, arithmetic, and many more.

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The number is a representation of the quantity or numerical value used for calculations. For example 0,1,2…

### Arithmetic

It is the operation between numbers, basic types of operations for real numbers are addition, multiplication, subtraction, and division.

The basic properties of arithmetic are the commutative, associative, and distributive properties.

### Operations on Numbers

Addition (+): This operation is used to add the inputs to get the output. For example when 2 is added to 3 the resultant will be equal to the sum of both the numbers which is equal to 5, (2 + 3 = 5).

Multiplication (×): This operation is used to get the product of inputs to get the result. For example when 2 is multiplied by 3 the resultant will be equal to the product of both the numbers which is equal to 6,  (2 × 3 = 6).

Subtraction (-): This operation is used to subtract the inputs to get the result. For example when 3 is subtracted by 2 the resultant will be equal to the difference of both the numbers which is equal to 1 (3 – 2 = 1).

Division (÷): This operation is used to divide the first input by the second input to get the result. For example when 6 is divided by 2 the resultant will be equal to the quotient of both the numbers which is equal to 3 (6 ÷ 2 = 3).

Commutative Property

The commutative property states that the order of the numbers used does not affect the result. Addition and multiplication are commutative operations:

4 + 5 = 5 + 4 = 9 (commutative)

4 × 5 = 5 × 4 = 20 (commutative)

Associative Property

The associative property states that the grouping of the numbers used does not affect the result. Addition and multiplication are associative operations:

4 + (5 + 6) = (4 + 5) + 6 (Associative).

4 × (5 × 6) = (4 × 5) × 6 (Associative).

Subtraction and division are neither commutative nor associative.

### How to Find the sum of 2 numbers?

The sum is an Arithmetic operation that results in the addition of 2 values to get the final value.

Let the first number be X and the second be Y.

Adding X and Y, we get the resultant as,

X + Y = Z.

Here, Z is the result of the sum of X and Y.

Let the value of X is 5,

and the value of Y is 4.

Then using the above equation,

X + Y = Z.

Substituting the value of X as 5 and Y as 4, we get.

5 + 4 = Z.

Therefore, Z is equal to 9.

5 + 4 = 9.

The sum of 2 numbers is the result of the addition of the value of both the numbers.

### Similar Questions

Question 1. What is the sum of 12 and 8?

Let the first number be X and the second be Y.

Adding X and Y, we get the resultant as,

X + Y = Z.

Here, Z is the result of the sum of X and Y.

The value of X is 12,

The value of Y is 8.

Then using the above equation,

X + Y = Z.

Substituting the value of X as 12 and Y as 8, we get.

12 + 8 = Z,

Therefore, Z is equal to 20.

12 + 8 = 20.

Question 2. What is the sum of 5 and 6?

Let the first number be X and the second be Y.

Adding X and Y, we get the resultant as,

X + Y = Z.

Here, Z is the result of the product of X and Y.

Let the value of X is 5,

and the value of Y is 6.

Then using the above equation,

X + Y = Z.

Substituting the value of X as 5 and Y as 6, we get.

5 + 6 = Z.

Therefore, Z is equal to 11.

5 + 6 = 11.

Hence, the sum is 11.

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