Welcome to my article **Find the value of 1 -2 -3 + 2 -3 -4 up to 100 terms**. This question is taken from the simplification lesson.

The solution of this question has been explained in a very simple way by a well-known teacher by doing addition, subtraction, and fractions.

For complete information on how to solve this question **Find the value of 1 -2 -3 + 2 -3 -4 up to 100 terms**, read and understand it carefully till the end.

Let us know how to solve this question **Find the value of 1 -2 -3 + 2 -3 -4 up to 100 terms**.

First write the question on the page of the notebook.

**Find the value of 1 -2 -3 + 2 -3 -4 up to 100 terms**

**First write this question as follows and then solve**,

**here**,

**a = -4**

**d = -1**

**n = 33**

**Formula**

**sum = \displaystyle \frac{n}{2}\left[ {2a+\left( {n-1} \right)d} \right]**

**putting of value a ,d ,n in this formula**,

**sum ** \displaystyle \Rightarrow \frac{{33}}{2}\left[ {2(-4)+\left( {33-1} \right)(-1)} \right]

**We have already added up to the 33rd series termSo**

**Total sum = sum up to 33rd row term + 34**

= -660 + 34

**= – 626 [Answer]**

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