Addition in simple words is the sum of values. If you have a list of values and want to know the sum of it. You go for addition.

**The addition formula is given by,**

**or**

If X and Y are two given number then,**the sum Z is given by**

If there are a list of values given say $a_{1},a_{2},a_{3},..........a_{n}$. Then,**the addition formula is given by**where, A is the sum of all given values.

If X and Y are two given number then,

If there are a list of values given say $a_{1},a_{2},a_{3},..........a_{n}$. Then,

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Given :

First number = 34, second number = 67

Sum = First number + Second number

= 34 + 67

= 101.

Given :

$a_{1}$ = 23, $a_{2}$ = 24, $a_{3}$

The addition formula is given by,

A = $a_{1}$ + $a_{2}$ + $a_{3}$ + $a_{4}$ + $a_{5}$

where, A is the sum.

$\therefore$ Sum = 23 + 24 + 56 + 48 + 13

= 164.